Home / 2,847.18-3,928.92-1,652.20

Finding the Fourth Proportional to 2,847.18, 3,928.92 and 1,652.20

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Solution

The fourth proportional to 2,847.18, 3,928.92 and 1,652.20 is: 2,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.18 : 3,928.92 = 1,652.20 : x
  2. Step 2: Convert to fraction form
    2,847.18/3,928.92 = 1,652.20/x
  3. Step 3: Cross multiply
    2,847.18x = 3,928.92 × 1,652.20
  4. Step 4: Simplify right side
    2,847.18x = 6,491,353.36
  5. Step 5: Solve for x
    x = 6,491,353.36/2,847.18
  6. Step 6: Final answer
    x = 2,279.92

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1.5x scale

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.