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Finding the Fourth Proportional to 6,513.83, 8,992.92 and 4,279.61

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Solution

The fourth proportional to 6,513.83, 8,992.92 and 4,279.61 is: 5,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.83 : 8,992.92 = 4,279.61 : x
  2. Step 2: Convert to fraction form
    6,513.83/8,992.92 = 4,279.61/x
  3. Step 3: Cross multiply
    6,513.83x = 8,992.92 × 4,279.61
  4. Step 4: Simplify right side
    6,513.83x = 38,486,145.40
  5. Step 5: Solve for x
    x = 38,486,145.40/6,513.83
  6. Step 6: Final answer
    x = 5,908.38

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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.