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Finding the Fourth Proportional to 8,440.32, 12,651.04 and 2,888.48

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Solution

The fourth proportional to 8,440.32, 12,651.04 and 2,888.48 is: 4,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.32 : 12,651.04 = 2,888.48 : x
  2. Step 2: Convert to fraction form
    8,440.32/12,651.04 = 2,888.48/x
  3. Step 3: Cross multiply
    8,440.32x = 12,651.04 × 2,888.48
  4. Step 4: Simplify right side
    8,440.32x = 36,542,276.02
  5. Step 5: Solve for x
    x = 36,542,276.02/8,440.32
  6. Step 6: Final answer
    x = 4,329.49

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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.