Home / 3,145.11-4,340.22-1,709.46

Finding the Fourth Proportional to 3,145.11, 4,340.22 and 1,709.46

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Solution

The fourth proportional to 3,145.11, 4,340.22 and 1,709.46 is: 2,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.11 : 4,340.22 = 1,709.46 : x
  2. Step 2: Convert to fraction form
    3,145.11/4,340.22 = 1,709.46/x
  3. Step 3: Cross multiply
    3,145.11x = 4,340.22 × 1,709.46
  4. Step 4: Simplify right side
    3,145.11x = 7,419,432.48
  5. Step 5: Solve for x
    x = 7,419,432.48/3,145.11
  6. Step 6: Final answer
    x = 2,359.04

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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.