Home / 3,137.55-4,331.25-2,019.11

Finding the Fourth Proportional to 3,137.55, 4,331.25 and 2,019.11

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Solution

The fourth proportional to 3,137.55, 4,331.25 and 2,019.11 is: 2,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.55 : 4,331.25 = 2,019.11 : x
  2. Step 2: Convert to fraction form
    3,137.55/4,331.25 = 2,019.11/x
  3. Step 3: Cross multiply
    3,137.55x = 4,331.25 × 2,019.11
  4. Step 4: Simplify right side
    3,137.55x = 8,745,248.53
  5. Step 5: Solve for x
    x = 8,745,248.53/3,137.55
  6. Step 6: Final answer
    x = 2,787.29

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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.