Home / 3,153.38-4,352.18-2,405.92

Finding the Fourth Proportional to 3,153.38, 4,352.18 and 2,405.92

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Solution

The fourth proportional to 3,153.38, 4,352.18 and 2,405.92 is: 3,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.38 : 4,352.18 = 2,405.92 : x
  2. Step 2: Convert to fraction form
    3,153.38/4,352.18 = 2,405.92/x
  3. Step 3: Cross multiply
    3,153.38x = 4,352.18 × 2,405.92
  4. Step 4: Simplify right side
    3,153.38x = 10,470,996.91
  5. Step 5: Solve for x
    x = 10,470,996.91/3,153.38
  6. Step 6: Final answer
    x = 3,320.56

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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.