Home / 2,119.32-3,176.52-1,729.92

Finding the Fourth Proportional to 2,119.32, 3,176.52 and 1,729.92

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Solution

The fourth proportional to 2,119.32, 3,176.52 and 1,729.92 is: 2,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.32 : 3,176.52 = 1,729.92 : x
  2. Step 2: Convert to fraction form
    2,119.32/3,176.52 = 1,729.92/x
  3. Step 3: Cross multiply
    2,119.32x = 3,176.52 × 1,729.92
  4. Step 4: Simplify right side
    2,119.32x = 5,495,125.48
  5. Step 5: Solve for x
    x = 5,495,125.48/2,119.32
  6. Step 6: Final answer
    x = 2,592.87

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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.