Home / 4,989.60-6,886.53-4,149.18

Finding the Fourth Proportional to 4,989.60, 6,886.53 and 4,149.18

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Solution

The fourth proportional to 4,989.60, 6,886.53 and 4,149.18 is: 5,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.60 : 6,886.53 = 4,149.18 : x
  2. Step 2: Convert to fraction form
    4,989.60/6,886.53 = 4,149.18/x
  3. Step 3: Cross multiply
    4,989.60x = 6,886.53 × 4,149.18
  4. Step 4: Simplify right side
    4,989.60x = 28,573,452.55
  5. Step 5: Solve for x
    x = 28,573,452.55/4,989.60
  6. Step 6: Final answer
    x = 5,726.60

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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.