Home / 6,139.92-8,472.70-3,622.14

Finding the Fourth Proportional to 6,139.92, 8,472.70 and 3,622.14

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Solution

The fourth proportional to 6,139.92, 8,472.70 and 3,622.14 is: 4,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.92 : 8,472.70 = 3,622.14 : x
  2. Step 2: Convert to fraction form
    6,139.92/8,472.70 = 3,622.14/x
  3. Step 3: Cross multiply
    6,139.92x = 8,472.70 × 3,622.14
  4. Step 4: Simplify right side
    6,139.92x = 30,689,305.58
  5. Step 5: Solve for x
    x = 30,689,305.58/6,139.92
  6. Step 6: Final answer
    x = 4,998.32

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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.