Home / 2,287.20-3,432.34-1,247.54

Finding the Fourth Proportional to 2,287.20, 3,432.34 and 1,247.54

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Solution

The fourth proportional to 2,287.20, 3,432.34 and 1,247.54 is: 1,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.20 : 3,432.34 = 1,247.54 : x
  2. Step 2: Convert to fraction form
    2,287.20/3,432.34 = 1,247.54/x
  3. Step 3: Cross multiply
    2,287.20x = 3,432.34 × 1,247.54
  4. Step 4: Simplify right side
    2,287.20x = 4,281,975.06
  5. Step 5: Solve for x
    x = 4,281,975.06/2,287.20
  6. Step 6: Final answer
    x = 1,872.15

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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.