Home / 2,232.04-3,079.20-1,391.80

Finding the Fourth Proportional to 2,232.04, 3,079.20 and 1,391.80

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Solution

The fourth proportional to 2,232.04, 3,079.20 and 1,391.80 is: 1,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.04 : 3,079.20 = 1,391.80 : x
  2. Step 2: Convert to fraction form
    2,232.04/3,079.20 = 1,391.80/x
  3. Step 3: Cross multiply
    2,232.04x = 3,079.20 × 1,391.80
  4. Step 4: Simplify right side
    2,232.04x = 4,285,630.56
  5. Step 5: Solve for x
    x = 4,285,630.56/2,232.04
  6. Step 6: Final answer
    x = 1,920.05

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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.