Home / 3,645.84-5,469.13-1,306.05

Finding the Fourth Proportional to 3,645.84, 5,469.13 and 1,306.05

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Solution

The fourth proportional to 3,645.84, 5,469.13 and 1,306.05 is: 1,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.84 : 5,469.13 = 1,306.05 : x
  2. Step 2: Convert to fraction form
    3,645.84/5,469.13 = 1,306.05/x
  3. Step 3: Cross multiply
    3,645.84x = 5,469.13 × 1,306.05
  4. Step 4: Simplify right side
    3,645.84x = 7,142,957.24
  5. Step 5: Solve for x
    x = 7,142,957.24/3,645.84
  6. Step 6: Final answer
    x = 1,959.21

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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.