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Finding the Fourth Proportional to 1,472.66, 2,209.04 and 741.84

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Solution

The fourth proportional to 1,472.66, 2,209.04 and 741.84 is: 1,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.66 : 2,209.04 = 741.84 : x
  2. Step 2: Convert to fraction form
    1,472.66/2,209.04 = 741.84/x
  3. Step 3: Cross multiply
    1,472.66x = 2,209.04 × 741.84
  4. Step 4: Simplify right side
    1,472.66x = 1,638,750.52
  5. Step 5: Solve for x
    x = 1,638,750.52/1,472.66
  6. Step 6: Final answer
    x = 1,112.79

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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.