Home / 1,488.35-2,232.53-939.17

Finding the Fourth Proportional to 1,488.35, 2,232.53 and 939.17

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Solution

The fourth proportional to 1,488.35, 2,232.53 and 939.17 is: 1,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.35 : 2,232.53 = 939.17 : x
  2. Step 2: Convert to fraction form
    1,488.35/2,232.53 = 939.17/x
  3. Step 3: Cross multiply
    1,488.35x = 2,232.53 × 939.17
  4. Step 4: Simplify right side
    1,488.35x = 2,096,725.20
  5. Step 5: Solve for x
    x = 2,096,725.20/1,488.35
  6. Step 6: Final answer
    x = 1,408.76

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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.