Home / 3,500.30-5,250.45-2,117.90

Finding the Fourth Proportional to 3,500.30, 5,250.45 and 2,117.90

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Solution

The fourth proportional to 3,500.30, 5,250.45 and 2,117.90 is: 3,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.30 : 5,250.45 = 2,117.90 : x
  2. Step 2: Convert to fraction form
    3,500.30/5,250.45 = 2,117.90/x
  3. Step 3: Cross multiply
    3,500.30x = 5,250.45 × 2,117.90
  4. Step 4: Simplify right side
    3,500.30x = 11,119,928.06
  5. Step 5: Solve for x
    x = 11,119,928.06/3,500.30
  6. Step 6: Final answer
    x = 3,176.85

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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.