Home / 2,962.78-4,084.80-2,429.71

Finding the Fourth Proportional to 2,962.78, 4,084.80 and 2,429.71

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Solution

The fourth proportional to 2,962.78, 4,084.80 and 2,429.71 is: 3,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.78 : 4,084.80 = 2,429.71 : x
  2. Step 2: Convert to fraction form
    2,962.78/4,084.80 = 2,429.71/x
  3. Step 3: Cross multiply
    2,962.78x = 4,084.80 × 2,429.71
  4. Step 4: Simplify right side
    2,962.78x = 9,924,879.41
  5. Step 5: Solve for x
    x = 9,924,879.41/2,962.78
  6. Step 6: Final answer
    x = 3,349.85

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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.