Home / 2,074.28-2,862.36-1,142.76

Finding the Fourth Proportional to 2,074.28, 2,862.36 and 1,142.76

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Solution

The fourth proportional to 2,074.28, 2,862.36 and 1,142.76 is: 1,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.28 : 2,862.36 = 1,142.76 : x
  2. Step 2: Convert to fraction form
    2,074.28/2,862.36 = 1,142.76/x
  3. Step 3: Cross multiply
    2,074.28x = 2,862.36 × 1,142.76
  4. Step 4: Simplify right side
    2,074.28x = 3,270,990.51
  5. Step 5: Solve for x
    x = 3,270,990.51/2,074.28
  6. Step 6: Final answer
    x = 1,576.93

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Half scale
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Double scale
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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.