Home / 3,990.32-5,508.60-3,062.96

Finding the Fourth Proportional to 3,990.32, 5,508.60 and 3,062.96

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Solution

The fourth proportional to 3,990.32, 5,508.60 and 3,062.96 is: 4,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.32 : 5,508.60 = 3,062.96 : x
  2. Step 2: Convert to fraction form
    3,990.32/5,508.60 = 3,062.96/x
  3. Step 3: Cross multiply
    3,990.32x = 5,508.60 × 3,062.96
  4. Step 4: Simplify right side
    3,990.32x = 16,872,621.46
  5. Step 5: Solve for x
    x = 16,872,621.46/3,990.32
  6. Step 6: Final answer
    x = 4,228.39

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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.