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Finding the Fourth Proportional to 1,437.13, 1,984.16 and 906.73

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Solution

The fourth proportional to 1,437.13, 1,984.16 and 906.73 is: 1,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.13 : 1,984.16 = 906.73 : x
  2. Step 2: Convert to fraction form
    1,437.13/1,984.16 = 906.73/x
  3. Step 3: Cross multiply
    1,437.13x = 1,984.16 × 906.73
  4. Step 4: Simplify right side
    1,437.13x = 1,799,097.40
  5. Step 5: Solve for x
    x = 1,799,097.40/1,437.13
  6. Step 6: Final answer
    x = 1,251.87

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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.