Home / 3,988.16-5,974.04-2,340.74

Finding the Fourth Proportional to 3,988.16, 5,974.04 and 2,340.74

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Solution

The fourth proportional to 3,988.16, 5,974.04 and 2,340.74 is: 3,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.16 : 5,974.04 = 2,340.74 : x
  2. Step 2: Convert to fraction form
    3,988.16/5,974.04 = 2,340.74/x
  3. Step 3: Cross multiply
    3,988.16x = 5,974.04 × 2,340.74
  4. Step 4: Simplify right side
    3,988.16x = 13,983,674.39
  5. Step 5: Solve for x
    x = 13,983,674.39/3,988.16
  6. Step 6: Final answer
    x = 3,506.30

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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.