Home / 3,386.52-5,079.72-1,306.98

Finding the Fourth Proportional to 3,386.52, 5,079.72 and 1,306.98

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Solution

The fourth proportional to 3,386.52, 5,079.72 and 1,306.98 is: 1,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.52 : 5,079.72 = 1,306.98 : x
  2. Step 2: Convert to fraction form
    3,386.52/5,079.72 = 1,306.98/x
  3. Step 3: Cross multiply
    3,386.52x = 5,079.72 × 1,306.98
  4. Step 4: Simplify right side
    3,386.52x = 6,639,092.45
  5. Step 5: Solve for x
    x = 6,639,092.45/3,386.52
  6. Step 6: Final answer
    x = 1,960.45

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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.