Home / 5,613.86-8,418.72-1,864.96

Finding the Fourth Proportional to 5,613.86, 8,418.72 and 1,864.96

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Solution

The fourth proportional to 5,613.86, 8,418.72 and 1,864.96 is: 2,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.86 : 8,418.72 = 1,864.96 : x
  2. Step 2: Convert to fraction form
    5,613.86/8,418.72 = 1,864.96/x
  3. Step 3: Cross multiply
    5,613.86x = 8,418.72 × 1,864.96
  4. Step 4: Simplify right side
    5,613.86x = 15,700,576.05
  5. Step 5: Solve for x
    x = 15,700,576.05/5,613.86
  6. Step 6: Final answer
    x = 2,796.75

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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.