Home / 3,115.28-4,672.60-1,652.88

Finding the Fourth Proportional to 3,115.28, 4,672.60 and 1,652.88

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Solution

The fourth proportional to 3,115.28, 4,672.60 and 1,652.88 is: 2,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.28 : 4,672.60 = 1,652.88 : x
  2. Step 2: Convert to fraction form
    3,115.28/4,672.60 = 1,652.88/x
  3. Step 3: Cross multiply
    3,115.28x = 4,672.60 × 1,652.88
  4. Step 4: Simplify right side
    3,115.28x = 7,723,247.09
  5. Step 5: Solve for x
    x = 7,723,247.09/3,115.28
  6. Step 6: Final answer
    x = 2,479.15

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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.