Home / 3,863.32-5,790.30-1,521.16

Finding the Fourth Proportional to 3,863.32, 5,790.30 and 1,521.16

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Solution

The fourth proportional to 3,863.32, 5,790.30 and 1,521.16 is: 2,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.32 : 5,790.30 = 1,521.16 : x
  2. Step 2: Convert to fraction form
    3,863.32/5,790.30 = 1,521.16/x
  3. Step 3: Cross multiply
    3,863.32x = 5,790.30 × 1,521.16
  4. Step 4: Simplify right side
    3,863.32x = 8,807,972.75
  5. Step 5: Solve for x
    x = 8,807,972.75/3,863.32
  6. Step 6: Final answer
    x = 2,279.90

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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.