Home / 3,909.52-5,393.10-2,581.48

Finding the Fourth Proportional to 3,909.52, 5,393.10 and 2,581.48

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Solution

The fourth proportional to 3,909.52, 5,393.10 and 2,581.48 is: 3,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.52 : 5,393.10 = 2,581.48 : x
  2. Step 2: Convert to fraction form
    3,909.52/5,393.10 = 2,581.48/x
  3. Step 3: Cross multiply
    3,909.52x = 5,393.10 × 2,581.48
  4. Step 4: Simplify right side
    3,909.52x = 13,922,179.79
  5. Step 5: Solve for x
    x = 13,922,179.79/3,909.52
  6. Step 6: Final answer
    x = 3,561.10

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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.