Home / 3,980.13-5,957.85-3,389.64

Finding the Fourth Proportional to 3,980.13, 5,957.85 and 3,389.64

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Solution

The fourth proportional to 3,980.13, 5,957.85 and 3,389.64 is: 5,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.13 : 5,957.85 = 3,389.64 : x
  2. Step 2: Convert to fraction form
    3,980.13/5,957.85 = 3,389.64/x
  3. Step 3: Cross multiply
    3,980.13x = 5,957.85 × 3,389.64
  4. Step 4: Simplify right side
    3,980.13x = 20,194,966.67
  5. Step 5: Solve for x
    x = 20,194,966.67/3,980.13
  6. Step 6: Final answer
    x = 5,073.95

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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.