Home / 3,129.27-4,689.83-2,343.09

Finding the Fourth Proportional to 3,129.27, 4,689.83 and 2,343.09

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Solution

The fourth proportional to 3,129.27, 4,689.83 and 2,343.09 is: 3,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.27 : 4,689.83 = 2,343.09 : x
  2. Step 2: Convert to fraction form
    3,129.27/4,689.83 = 2,343.09/x
  3. Step 3: Cross multiply
    3,129.27x = 4,689.83 × 2,343.09
  4. Step 4: Simplify right side
    3,129.27x = 10,988,717.22
  5. Step 5: Solve for x
    x = 10,988,717.22/3,129.27
  6. Step 6: Final answer
    x = 3,511.60

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1.5x scale

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.