Home / 6,514.20-8,990.79-3,862.92

Finding the Fourth Proportional to 6,514.20, 8,990.79 and 3,862.92

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Solution

The fourth proportional to 6,514.20, 8,990.79 and 3,862.92 is: 5,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.20 : 8,990.79 = 3,862.92 : x
  2. Step 2: Convert to fraction form
    6,514.20/8,990.79 = 3,862.92/x
  3. Step 3: Cross multiply
    6,514.20x = 8,990.79 × 3,862.92
  4. Step 4: Simplify right side
    6,514.20x = 34,730,702.51
  5. Step 5: Solve for x
    x = 34,730,702.51/6,514.20
  6. Step 6: Final answer
    x = 5,331.54

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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.