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Finding the Fourth Proportional to 907.43, 1,252.25 and 534.48

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Solution

The fourth proportional to 907.43, 1,252.25 and 534.48 is: 737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.43 : 1,252.25 = 534.48 : x
  2. Step 2: Convert to fraction form
    907.43/1,252.25 = 534.48/x
  3. Step 3: Cross multiply
    907.43x = 1,252.25 × 534.48
  4. Step 4: Simplify right side
    907.43x = 669,299.91
  5. Step 5: Solve for x
    x = 669,299.91/907.43
  6. Step 6: Final answer
    x = 737.58

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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.