Home / 5,140.58-7,711.32-1,442.84

Finding the Fourth Proportional to 5,140.58, 7,711.32 and 1,442.84

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Solution

The fourth proportional to 5,140.58, 7,711.32 and 1,442.84 is: 2,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.58 : 7,711.32 = 1,442.84 : x
  2. Step 2: Convert to fraction form
    5,140.58/7,711.32 = 1,442.84/x
  3. Step 3: Cross multiply
    5,140.58x = 7,711.32 × 1,442.84
  4. Step 4: Simplify right side
    5,140.58x = 11,126,200.95
  5. Step 5: Solve for x
    x = 11,126,200.95/5,140.58
  6. Step 6: Final answer
    x = 2,164.39

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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.