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Finding the Fourth Proportional to 5,397.86, 7,448.78 and 3,006.74

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Solution

The fourth proportional to 5,397.86, 7,448.78 and 3,006.74 is: 4,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.86 : 7,448.78 = 3,006.74 : x
  2. Step 2: Convert to fraction form
    5,397.86/7,448.78 = 3,006.74/x
  3. Step 3: Cross multiply
    5,397.86x = 7,448.78 × 3,006.74
  4. Step 4: Simplify right side
    5,397.86x = 22,396,544.78
  5. Step 5: Solve for x
    x = 22,396,544.78/5,397.86
  6. Step 6: Final answer
    x = 4,149.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.