Home / 5,514.30-8,271.45-5,319.90

Finding the Fourth Proportional to 5,514.30, 8,271.45 and 5,319.90

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Solution

The fourth proportional to 5,514.30, 8,271.45 and 5,319.90 is: 7,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.30 : 8,271.45 = 5,319.90 : x
  2. Step 2: Convert to fraction form
    5,514.30/8,271.45 = 5,319.90/x
  3. Step 3: Cross multiply
    5,514.30x = 8,271.45 × 5,319.90
  4. Step 4: Simplify right side
    5,514.30x = 44,003,286.86
  5. Step 5: Solve for x
    x = 44,003,286.86/5,514.30
  6. Step 6: Final answer
    x = 7,979.85

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Double scale
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Similar ratio
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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.