Home / 8,055.28-12,083.92-2,861.20

Finding the Fourth Proportional to 8,055.28, 12,083.92 and 2,861.20

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Solution

The fourth proportional to 8,055.28, 12,083.92 and 2,861.20 is: 4,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.28 : 12,083.92 = 2,861.20 : x
  2. Step 2: Convert to fraction form
    8,055.28/12,083.92 = 2,861.20/x
  3. Step 3: Cross multiply
    8,055.28x = 12,083.92 × 2,861.20
  4. Step 4: Simplify right side
    8,055.28x = 34,574,511.90
  5. Step 5: Solve for x
    x = 34,574,511.90/8,055.28
  6. Step 6: Final answer
    x = 4,292.16

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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.