Home / 5,613.44-8,420.20-1,717.92

Finding the Fourth Proportional to 5,613.44, 8,420.20 and 1,717.92

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Solution

The fourth proportional to 5,613.44, 8,420.20 and 1,717.92 is: 2,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.44 : 8,420.20 = 1,717.92 : x
  2. Step 2: Convert to fraction form
    5,613.44/8,420.20 = 1,717.92/x
  3. Step 3: Cross multiply
    5,613.44x = 8,420.20 × 1,717.92
  4. Step 4: Simplify right side
    5,613.44x = 14,465,229.98
  5. Step 5: Solve for x
    x = 14,465,229.98/5,613.44
  6. Step 6: Final answer
    x = 2,576.89

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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.