Home / 3,613.60-4,987.34-2,618.52

Finding the Fourth Proportional to 3,613.60, 4,987.34 and 2,618.52

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Solution

The fourth proportional to 3,613.60, 4,987.34 and 2,618.52 is: 3,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.60 : 4,987.34 = 2,618.52 : x
  2. Step 2: Convert to fraction form
    3,613.60/4,987.34 = 2,618.52/x
  3. Step 3: Cross multiply
    3,613.60x = 4,987.34 × 2,618.52
  4. Step 4: Simplify right side
    3,613.60x = 13,059,449.54
  5. Step 5: Solve for x
    x = 13,059,449.54/3,613.60
  6. Step 6: Final answer
    x = 3,613.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.