Home / 4,777.10-7,165.65-3,221.90

Finding the Fourth Proportional to 4,777.10, 7,165.65 and 3,221.90

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Solution

The fourth proportional to 4,777.10, 7,165.65 and 3,221.90 is: 4,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.10 : 7,165.65 = 3,221.90 : x
  2. Step 2: Convert to fraction form
    4,777.10/7,165.65 = 3,221.90/x
  3. Step 3: Cross multiply
    4,777.10x = 7,165.65 × 3,221.90
  4. Step 4: Simplify right side
    4,777.10x = 23,087,007.74
  5. Step 5: Solve for x
    x = 23,087,007.74/4,777.10
  6. Step 6: Final answer
    x = 4,832.85

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Similar ratio
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1.5x scale

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.