Home / 3,138.49-4,680.30-2,750.29

Finding the Fourth Proportional to 3,138.49, 4,680.30 and 2,750.29

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Solution

The fourth proportional to 3,138.49, 4,680.30 and 2,750.29 is: 4,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.49 : 4,680.30 = 2,750.29 : x
  2. Step 2: Convert to fraction form
    3,138.49/4,680.30 = 2,750.29/x
  3. Step 3: Cross multiply
    3,138.49x = 4,680.30 × 2,750.29
  4. Step 4: Simplify right side
    3,138.49x = 12,872,182.29
  5. Step 5: Solve for x
    x = 12,872,182.29/3,138.49
  6. Step 6: Final answer
    x = 4,101.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.