Home / 3,153.25-4,344.24-2,489.86

Finding the Fourth Proportional to 3,153.25, 4,344.24 and 2,489.86

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Solution

The fourth proportional to 3,153.25, 4,344.24 and 2,489.86 is: 3,430.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.25 : 4,344.24 = 2,489.86 : x
  2. Step 2: Convert to fraction form
    3,153.25/4,344.24 = 2,489.86/x
  3. Step 3: Cross multiply
    3,153.25x = 4,344.24 × 2,489.86
  4. Step 4: Simplify right side
    3,153.25x = 10,816,549.41
  5. Step 5: Solve for x
    x = 10,816,549.41/3,153.25
  6. Step 6: Final answer
    x = 3,430.29

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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.