Home / 5,613.68-8,415.95-2,101.72

Finding the Fourth Proportional to 5,613.68, 8,415.95 and 2,101.72

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Solution

The fourth proportional to 5,613.68, 8,415.95 and 2,101.72 is: 3,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.68 : 8,415.95 = 2,101.72 : x
  2. Step 2: Convert to fraction form
    5,613.68/8,415.95 = 2,101.72/x
  3. Step 3: Cross multiply
    5,613.68x = 8,415.95 × 2,101.72
  4. Step 4: Simplify right side
    5,613.68x = 17,687,970.43
  5. Step 5: Solve for x
    x = 17,687,970.43/5,613.68
  6. Step 6: Final answer
    x = 3,150.87

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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.