Home / 3,531.20-4,872.15-2,187.41

Finding the Fourth Proportional to 3,531.20, 4,872.15 and 2,187.41

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Solution

The fourth proportional to 3,531.20, 4,872.15 and 2,187.41 is: 3,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.20 : 4,872.15 = 2,187.41 : x
  2. Step 2: Convert to fraction form
    3,531.20/4,872.15 = 2,187.41/x
  3. Step 3: Cross multiply
    3,531.20x = 4,872.15 × 2,187.41
  4. Step 4: Simplify right side
    3,531.20x = 10,657,365.27
  5. Step 5: Solve for x
    x = 10,657,365.27/3,531.20
  6. Step 6: Final answer
    x = 3,018.06

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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.