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Finding the Fourth Proportional to 907.15, 1,251.52 and 592.31

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Solution

The fourth proportional to 907.15, 1,251.52 and 592.31 is: 817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.15 : 1,251.52 = 592.31 : x
  2. Step 2: Convert to fraction form
    907.15/1,251.52 = 592.31/x
  3. Step 3: Cross multiply
    907.15x = 1,251.52 × 592.31
  4. Step 4: Simplify right side
    907.15x = 741,289.46
  5. Step 5: Solve for x
    x = 741,289.46/907.15
  6. Step 6: Final answer
    x = 817.16

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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.