Home / 3,387.15-5,072.80-2,929.95

Finding the Fourth Proportional to 3,387.15, 5,072.80 and 2,929.95

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Solution

The fourth proportional to 3,387.15, 5,072.80 and 2,929.95 is: 4,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.15 : 5,072.80 = 2,929.95 : x
  2. Step 2: Convert to fraction form
    3,387.15/5,072.80 = 2,929.95/x
  3. Step 3: Cross multiply
    3,387.15x = 5,072.80 × 2,929.95
  4. Step 4: Simplify right side
    3,387.15x = 14,863,050.36
  5. Step 5: Solve for x
    x = 14,863,050.36/3,387.15
  6. Step 6: Final answer
    x = 4,388.07

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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.