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Finding the Fourth Proportional to 901.92, 1,244.84 and 529.10

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Solution

The fourth proportional to 901.92, 1,244.84 and 529.10 is: 730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.92 : 1,244.84 = 529.10 : x
  2. Step 2: Convert to fraction form
    901.92/1,244.84 = 529.10/x
  3. Step 3: Cross multiply
    901.92x = 1,244.84 × 529.10
  4. Step 4: Simplify right side
    901.92x = 658,644.84
  5. Step 5: Solve for x
    x = 658,644.84/901.92
  6. Step 6: Final answer
    x = 730.27

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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.