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Finding the Fourth Proportional to 2,187.59, 3,281.49 and 627.41

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Solution

The fourth proportional to 2,187.59, 3,281.49 and 627.41 is: 941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.59 : 3,281.49 = 627.41 : x
  2. Step 2: Convert to fraction form
    2,187.59/3,281.49 = 627.41/x
  3. Step 3: Cross multiply
    2,187.59x = 3,281.49 × 627.41
  4. Step 4: Simplify right side
    2,187.59x = 2,058,847.84
  5. Step 5: Solve for x
    x = 2,058,847.84/2,187.59
  6. Step 6: Final answer
    x = 941.15

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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.