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Finding the Fourth Proportional to 8,160.57, 12,240.86 and 3,230.91

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Solution

The fourth proportional to 8,160.57, 12,240.86 and 3,230.91 is: 4,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.57 : 12,240.86 = 3,230.91 : x
  2. Step 2: Convert to fraction form
    8,160.57/12,240.86 = 3,230.91/x
  3. Step 3: Cross multiply
    8,160.57x = 12,240.86 × 3,230.91
  4. Step 4: Simplify right side
    8,160.57x = 39,549,100.83
  5. Step 5: Solve for x
    x = 39,549,100.83/8,160.57
  6. Step 6: Final answer
    x = 4,846.37

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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.