Home / 7,321.38-10,983.45-2,939.18

Finding the Fourth Proportional to 7,321.38, 10,983.45 and 2,939.18

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Solution

The fourth proportional to 7,321.38, 10,983.45 and 2,939.18 is: 4,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.38 : 10,983.45 = 2,939.18 : x
  2. Step 2: Convert to fraction form
    7,321.38/10,983.45 = 2,939.18/x
  3. Step 3: Cross multiply
    7,321.38x = 10,983.45 × 2,939.18
  4. Step 4: Simplify right side
    7,321.38x = 32,282,336.57
  5. Step 5: Solve for x
    x = 32,282,336.57/7,321.38
  6. Step 6: Final answer
    x = 4,409.32

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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.