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Finding the Fourth Proportional to 1,635.52, 2,256.51 and 936.76

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Solution

The fourth proportional to 1,635.52, 2,256.51 and 936.76 is: 1,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.52 : 2,256.51 = 936.76 : x
  2. Step 2: Convert to fraction form
    1,635.52/2,256.51 = 936.76/x
  3. Step 3: Cross multiply
    1,635.52x = 2,256.51 × 936.76
  4. Step 4: Simplify right side
    1,635.52x = 2,113,808.31
  5. Step 5: Solve for x
    x = 2,113,808.31/1,635.52
  6. Step 6: Final answer
    x = 1,292.44

Related Problems

Find fourth proportional to 817.76, 1,128.26 and 468.38
Half scale
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Double scale
Find fourth proportional to 1,636.52, 2,257.89 and 937.76
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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.