Home / 7,321.10-10,983.26-3,423.38

Finding the Fourth Proportional to 7,321.10, 10,983.26 and 3,423.38

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Solution

The fourth proportional to 7,321.10, 10,983.26 and 3,423.38 is: 5,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.10 : 10,983.26 = 3,423.38 : x
  2. Step 2: Convert to fraction form
    7,321.10/10,983.26 = 3,423.38/x
  3. Step 3: Cross multiply
    7,321.10x = 10,983.26 × 3,423.38
  4. Step 4: Simplify right side
    7,321.10x = 37,599,826.26
  5. Step 5: Solve for x
    x = 37,599,826.26/7,321.10
  6. Step 6: Final answer
    x = 5,135.82

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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.