Home / 4,319.20-5,959.02-2,828.80

Finding the Fourth Proportional to 4,319.20, 5,959.02 and 2,828.80

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Solution

The fourth proportional to 4,319.20, 5,959.02 and 2,828.80 is: 3,902.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.20 : 5,959.02 = 2,828.80 : x
  2. Step 2: Convert to fraction form
    4,319.20/5,959.02 = 2,828.80/x
  3. Step 3: Cross multiply
    4,319.20x = 5,959.02 × 2,828.80
  4. Step 4: Simplify right side
    4,319.20x = 16,856,875.78
  5. Step 5: Solve for x
    x = 16,856,875.78/4,319.20
  6. Step 6: Final answer
    x = 3,902.78

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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.