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Finding the Fourth Proportional to 1,627.12, 2,441.02 and 472.76

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Solution

The fourth proportional to 1,627.12, 2,441.02 and 472.76 is: 709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.12 : 2,441.02 = 472.76 : x
  2. Step 2: Convert to fraction form
    1,627.12/2,441.02 = 472.76/x
  3. Step 3: Cross multiply
    1,627.12x = 2,441.02 × 472.76
  4. Step 4: Simplify right side
    1,627.12x = 1,154,016.62
  5. Step 5: Solve for x
    x = 1,154,016.62/1,627.12
  6. Step 6: Final answer
    x = 709.24

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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.