Home / 3,927.60-5,887.20-2,170.68

Finding the Fourth Proportional to 3,927.60, 5,887.20 and 2,170.68

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Solution

The fourth proportional to 3,927.60, 5,887.20 and 2,170.68 is: 3,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.60 : 5,887.20 = 2,170.68 : x
  2. Step 2: Convert to fraction form
    3,927.60/5,887.20 = 2,170.68/x
  3. Step 3: Cross multiply
    3,927.60x = 5,887.20 × 2,170.68
  4. Step 4: Simplify right side
    3,927.60x = 12,779,227.30
  5. Step 5: Solve for x
    x = 12,779,227.30/3,927.60
  6. Step 6: Final answer
    x = 3,253.70

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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.