Home / 3,861.52-5,790.66-1,521.16

Finding the Fourth Proportional to 3,861.52, 5,790.66 and 1,521.16

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Solution

The fourth proportional to 3,861.52, 5,790.66 and 1,521.16 is: 2,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.52 : 5,790.66 = 1,521.16 : x
  2. Step 2: Convert to fraction form
    3,861.52/5,790.66 = 1,521.16/x
  3. Step 3: Cross multiply
    3,861.52x = 5,790.66 × 1,521.16
  4. Step 4: Simplify right side
    3,861.52x = 8,808,520.37
  5. Step 5: Solve for x
    x = 8,808,520.37/3,861.52
  6. Step 6: Final answer
    x = 2,281.10

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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.