Home / 907.03-1,251.72-514.15

Finding the Fourth Proportional to 907.03, 1,251.72 and 514.15

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Solution

The fourth proportional to 907.03, 1,251.72 and 514.15 is: 709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.03 : 1,251.72 = 514.15 : x
  2. Step 2: Convert to fraction form
    907.03/1,251.72 = 514.15/x
  3. Step 3: Cross multiply
    907.03x = 1,251.72 × 514.15
  4. Step 4: Simplify right side
    907.03x = 643,568.71
  5. Step 5: Solve for x
    x = 643,568.71/907.03
  6. Step 6: Final answer
    x = 709.53

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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.