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Finding the Fourth Proportional to 3,068.28, 4,229.28 and 1,886.76

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Solution

The fourth proportional to 3,068.28, 4,229.28 and 1,886.76 is: 2,600.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.28 : 4,229.28 = 1,886.76 : x
  2. Step 2: Convert to fraction form
    3,068.28/4,229.28 = 1,886.76/x
  3. Step 3: Cross multiply
    3,068.28x = 4,229.28 × 1,886.76
  4. Step 4: Simplify right side
    3,068.28x = 7,979,636.33
  5. Step 5: Solve for x
    x = 7,979,636.33/3,068.28
  6. Step 6: Final answer
    x = 2,600.69

Related Problems

Find fourth proportional to 1,534.14, 2,114.64 and 943.38
Half scale
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Double scale
Find fourth proportional to 3,069.28, 4,230.66 and 1,887.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.