Home / 1,551.49-2,327.13-939.13

Finding the Fourth Proportional to 1,551.49, 2,327.13 and 939.13

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Solution

The fourth proportional to 1,551.49, 2,327.13 and 939.13 is: 1,408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.49 : 2,327.13 = 939.13 : x
  2. Step 2: Convert to fraction form
    1,551.49/2,327.13 = 939.13/x
  3. Step 3: Cross multiply
    1,551.49x = 2,327.13 × 939.13
  4. Step 4: Simplify right side
    1,551.49x = 2,185,471.78
  5. Step 5: Solve for x
    x = 2,185,471.78/1,551.49
  6. Step 6: Final answer
    x = 1,408.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.