Home / 4,478.91-6,721.87-3,101.90

Finding the Fourth Proportional to 4,478.91, 6,721.87 and 3,101.90

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Solution

The fourth proportional to 4,478.91, 6,721.87 and 3,101.90 is: 4,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.91 : 6,721.87 = 3,101.90 : x
  2. Step 2: Convert to fraction form
    4,478.91/6,721.87 = 3,101.90/x
  3. Step 3: Cross multiply
    4,478.91x = 6,721.87 × 3,101.90
  4. Step 4: Simplify right side
    4,478.91x = 20,850,577.60
  5. Step 5: Solve for x
    x = 20,850,577.60/4,478.91
  6. Step 6: Final answer
    x = 4,655.28

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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.