Home / 5,613.72-8,422.38-1,718.12

Finding the Fourth Proportional to 5,613.72, 8,422.38 and 1,718.12

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Solution

The fourth proportional to 5,613.72, 8,422.38 and 1,718.12 is: 2,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.72 : 8,422.38 = 1,718.12 : x
  2. Step 2: Convert to fraction form
    5,613.72/8,422.38 = 1,718.12/x
  3. Step 3: Cross multiply
    5,613.72x = 8,422.38 × 1,718.12
  4. Step 4: Simplify right side
    5,613.72x = 14,470,659.53
  5. Step 5: Solve for x
    x = 14,470,659.53/5,613.72
  6. Step 6: Final answer
    x = 2,577.73

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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.