Home / 5,140.70-7,711.00-1,442.91

Finding the Fourth Proportional to 5,140.70, 7,711.00 and 1,442.91

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Solution

The fourth proportional to 5,140.70, 7,711.00 and 1,442.91 is: 2,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.70 : 7,711.00 = 1,442.91 : x
  2. Step 2: Convert to fraction form
    5,140.70/7,711.00 = 1,442.91/x
  3. Step 3: Cross multiply
    5,140.70x = 7,711.00 × 1,442.91
  4. Step 4: Simplify right side
    5,140.70x = 11,126,304.32
  5. Step 5: Solve for x
    x = 11,126,304.32/5,140.70
  6. Step 6: Final answer
    x = 2,164.36

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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.