Home / 3,420.76-5,131.38-2,324.68

Finding the Fourth Proportional to 3,420.76, 5,131.38 and 2,324.68

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Solution

The fourth proportional to 3,420.76, 5,131.38 and 2,324.68 is: 3,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.76 : 5,131.38 = 2,324.68 : x
  2. Step 2: Convert to fraction form
    3,420.76/5,131.38 = 2,324.68/x
  3. Step 3: Cross multiply
    3,420.76x = 5,131.38 × 2,324.68
  4. Step 4: Simplify right side
    3,420.76x = 11,928,816.46
  5. Step 5: Solve for x
    x = 11,928,816.46/3,420.76
  6. Step 6: Final answer
    x = 3,487.18

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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.