Home / 8,160.29-12,240.22-2,316.90

Finding the Fourth Proportional to 8,160.29, 12,240.22 and 2,316.90

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Solution

The fourth proportional to 8,160.29, 12,240.22 and 2,316.90 is: 3,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.29 : 12,240.22 = 2,316.90 : x
  2. Step 2: Convert to fraction form
    8,160.29/12,240.22 = 2,316.90/x
  3. Step 3: Cross multiply
    8,160.29x = 12,240.22 × 2,316.90
  4. Step 4: Simplify right side
    8,160.29x = 28,359,365.72
  5. Step 5: Solve for x
    x = 28,359,365.72/8,160.29
  6. Step 6: Final answer
    x = 3,475.29

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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.