Home / 4,613.72-6,920.36-2,147.66

Finding the Fourth Proportional to 4,613.72, 6,920.36 and 2,147.66

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Solution

The fourth proportional to 4,613.72, 6,920.36 and 2,147.66 is: 3,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.72 : 6,920.36 = 2,147.66 : x
  2. Step 2: Convert to fraction form
    4,613.72/6,920.36 = 2,147.66/x
  3. Step 3: Cross multiply
    4,613.72x = 6,920.36 × 2,147.66
  4. Step 4: Simplify right side
    4,613.72x = 14,862,580.36
  5. Step 5: Solve for x
    x = 14,862,580.36/4,613.72
  6. Step 6: Final answer
    x = 3,221.39

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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.