Home / 3,178.60-4,387.36-2,234.61

Finding the Fourth Proportional to 3,178.60, 4,387.36 and 2,234.61

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Solution

The fourth proportional to 3,178.60, 4,387.36 and 2,234.61 is: 3,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.60 : 4,387.36 = 2,234.61 : x
  2. Step 2: Convert to fraction form
    3,178.60/4,387.36 = 2,234.61/x
  3. Step 3: Cross multiply
    3,178.60x = 4,387.36 × 2,234.61
  4. Step 4: Simplify right side
    3,178.60x = 9,804,038.53
  5. Step 5: Solve for x
    x = 9,804,038.53/3,178.60
  6. Step 6: Final answer
    x = 3,084.39

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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.