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Finding the Fourth Proportional to 4,128.80, 6,193.17 and 1,008.82

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Solution

The fourth proportional to 4,128.80, 6,193.17 and 1,008.82 is: 1,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.80 : 6,193.17 = 1,008.82 : x
  2. Step 2: Convert to fraction form
    4,128.80/6,193.17 = 1,008.82/x
  3. Step 3: Cross multiply
    4,128.80x = 6,193.17 × 1,008.82
  4. Step 4: Simplify right side
    4,128.80x = 6,247,800.25
  5. Step 5: Solve for x
    x = 6,247,800.25/4,128.80
  6. Step 6: Final answer
    x = 1,513.22

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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.