Home / 4,920.10-7,372.05-3,607.90

Finding the Fourth Proportional to 4,920.10, 7,372.05 and 3,607.90

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Solution

The fourth proportional to 4,920.10, 7,372.05 and 3,607.90 is: 5,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.10 : 7,372.05 = 3,607.90 : x
  2. Step 2: Convert to fraction form
    4,920.10/7,372.05 = 3,607.90/x
  3. Step 3: Cross multiply
    4,920.10x = 7,372.05 × 3,607.90
  4. Step 4: Simplify right side
    4,920.10x = 26,597,619.20
  5. Step 5: Solve for x
    x = 26,597,619.20/4,920.10
  6. Step 6: Final answer
    x = 5,405.91

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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.