Home / 3,909.80-5,856.50-2,671.41

Finding the Fourth Proportional to 3,909.80, 5,856.50 and 2,671.41

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Solution

The fourth proportional to 3,909.80, 5,856.50 and 2,671.41 is: 4,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.80 : 5,856.50 = 2,671.41 : x
  2. Step 2: Convert to fraction form
    3,909.80/5,856.50 = 2,671.41/x
  3. Step 3: Cross multiply
    3,909.80x = 5,856.50 × 2,671.41
  4. Step 4: Simplify right side
    3,909.80x = 15,645,099.31
  5. Step 5: Solve for x
    x = 15,645,099.31/3,909.80
  6. Step 6: Final answer
    x = 4,001.51

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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.