Home / 5,613.86-8,421.12-2,327.20

Finding the Fourth Proportional to 5,613.86, 8,421.12 and 2,327.20

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Solution

The fourth proportional to 5,613.86, 8,421.12 and 2,327.20 is: 3,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.86 : 8,421.12 = 2,327.20 : x
  2. Step 2: Convert to fraction form
    5,613.86/8,421.12 = 2,327.20/x
  3. Step 3: Cross multiply
    5,613.86x = 8,421.12 × 2,327.20
  4. Step 4: Simplify right side
    5,613.86x = 19,597,630.46
  5. Step 5: Solve for x
    x = 19,597,630.46/5,613.86
  6. Step 6: Final answer
    x = 3,490.94

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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.