Home / 5,141.73-7,711.00-1,854.40

Finding the Fourth Proportional to 5,141.73, 7,711.00 and 1,854.40

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Solution

The fourth proportional to 5,141.73, 7,711.00 and 1,854.40 is: 2,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.73 : 7,711.00 = 1,854.40 : x
  2. Step 2: Convert to fraction form
    5,141.73/7,711.00 = 1,854.40/x
  3. Step 3: Cross multiply
    5,141.73x = 7,711.00 × 1,854.40
  4. Step 4: Simplify right side
    5,141.73x = 14,299,269.40
  5. Step 5: Solve for x
    x = 14,299,269.40/5,141.73
  6. Step 6: Final answer
    x = 2,781.02

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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.