Home / 907.03-1,251.72-557.50

Finding the Fourth Proportional to 907.03, 1,251.72 and 557.50

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Solution

The fourth proportional to 907.03, 1,251.72 and 557.50 is: 769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.03 : 1,251.72 = 557.50 : x
  2. Step 2: Convert to fraction form
    907.03/1,251.72 = 557.50/x
  3. Step 3: Cross multiply
    907.03x = 1,251.72 × 557.50
  4. Step 4: Simplify right side
    907.03x = 697,833.90
  5. Step 5: Solve for x
    x = 697,833.90/907.03
  6. Step 6: Final answer
    x = 769.36

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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.