Home / 3,429.90-4,732.98-2,013.78

Finding the Fourth Proportional to 3,429.90, 4,732.98 and 2,013.78

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Solution

The fourth proportional to 3,429.90, 4,732.98 and 2,013.78 is: 2,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.90 : 4,732.98 = 2,013.78 : x
  2. Step 2: Convert to fraction form
    3,429.90/4,732.98 = 2,013.78/x
  3. Step 3: Cross multiply
    3,429.90x = 4,732.98 × 2,013.78
  4. Step 4: Simplify right side
    3,429.90x = 9,531,180.46
  5. Step 5: Solve for x
    x = 9,531,180.46/3,429.90
  6. Step 6: Final answer
    x = 2,778.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.