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Finding the Fourth Proportional to 5,379.92, 8,029.74 and 5,248.68

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Solution

The fourth proportional to 5,379.92, 8,029.74 and 5,248.68 is: 7,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.92 : 8,029.74 = 5,248.68 : x
  2. Step 2: Convert to fraction form
    5,379.92/8,029.74 = 5,248.68/x
  3. Step 3: Cross multiply
    5,379.92x = 8,029.74 × 5,248.68
  4. Step 4: Simplify right side
    5,379.92x = 42,145,535.74
  5. Step 5: Solve for x
    x = 42,145,535.74/5,379.92
  6. Step 6: Final answer
    x = 7,833.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.