Home / 7,340.20-10,129.24-3,982.84

Finding the Fourth Proportional to 7,340.20, 10,129.24 and 3,982.84

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Solution

The fourth proportional to 7,340.20, 10,129.24 and 3,982.84 is: 5,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.20 : 10,129.24 = 3,982.84 : x
  2. Step 2: Convert to fraction form
    7,340.20/10,129.24 = 3,982.84/x
  3. Step 3: Cross multiply
    7,340.20x = 10,129.24 × 3,982.84
  4. Step 4: Simplify right side
    7,340.20x = 40,343,142.24
  5. Step 5: Solve for x
    x = 40,343,142.24/7,340.20
  6. Step 6: Final answer
    x = 5,496.19

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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.