Home / 3,730.50-5,147.28-2,403.90

Finding the Fourth Proportional to 3,730.50, 5,147.28 and 2,403.90

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Solution

The fourth proportional to 3,730.50, 5,147.28 and 2,403.90 is: 3,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.50 : 5,147.28 = 2,403.90 : x
  2. Step 2: Convert to fraction form
    3,730.50/5,147.28 = 2,403.90/x
  3. Step 3: Cross multiply
    3,730.50x = 5,147.28 × 2,403.90
  4. Step 4: Simplify right side
    3,730.50x = 12,373,546.39
  5. Step 5: Solve for x
    x = 12,373,546.39/3,730.50
  6. Step 6: Final answer
    x = 3,316.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.