Home / 3,442.50-5,160.65-1,250.78

Finding the Fourth Proportional to 3,442.50, 5,160.65 and 1,250.78

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Solution

The fourth proportional to 3,442.50, 5,160.65 and 1,250.78 is: 1,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.50 : 5,160.65 = 1,250.78 : x
  2. Step 2: Convert to fraction form
    3,442.50/5,160.65 = 1,250.78/x
  3. Step 3: Cross multiply
    3,442.50x = 5,160.65 × 1,250.78
  4. Step 4: Simplify right side
    3,442.50x = 6,454,805.75
  5. Step 5: Solve for x
    x = 6,454,805.75/3,442.50
  6. Step 6: Final answer
    x = 1,875.03

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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.