Home / 4,947.11-7,419.45-1,660.13

Finding the Fourth Proportional to 4,947.11, 7,419.45 and 1,660.13

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Solution

The fourth proportional to 4,947.11, 7,419.45 and 1,660.13 is: 2,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.11 : 7,419.45 = 1,660.13 : x
  2. Step 2: Convert to fraction form
    4,947.11/7,419.45 = 1,660.13/x
  3. Step 3: Cross multiply
    4,947.11x = 7,419.45 × 1,660.13
  4. Step 4: Simplify right side
    4,947.11x = 12,317,243.23
  5. Step 5: Solve for x
    x = 12,317,243.23/4,947.11
  6. Step 6: Final answer
    x = 2,489.79

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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.