Home / 2,319.52-3,195.60-1,728.88

Finding the Fourth Proportional to 2,319.52, 3,195.60 and 1,728.88

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Solution

The fourth proportional to 2,319.52, 3,195.60 and 1,728.88 is: 2,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.52 : 3,195.60 = 1,728.88 : x
  2. Step 2: Convert to fraction form
    2,319.52/3,195.60 = 1,728.88/x
  3. Step 3: Cross multiply
    2,319.52x = 3,195.60 × 1,728.88
  4. Step 4: Simplify right side
    2,319.52x = 5,524,808.93
  5. Step 5: Solve for x
    x = 5,524,808.93/2,319.52
  6. Step 6: Final answer
    x = 2,381.88

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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.