Home / 3,176.60-4,754.10-2,787.80

Finding the Fourth Proportional to 3,176.60, 4,754.10 and 2,787.80

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Solution

The fourth proportional to 3,176.60, 4,754.10 and 2,787.80 is: 4,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.60 : 4,754.10 = 2,787.80 : x
  2. Step 2: Convert to fraction form
    3,176.60/4,754.10 = 2,787.80/x
  3. Step 3: Cross multiply
    3,176.60x = 4,754.10 × 2,787.80
  4. Step 4: Simplify right side
    3,176.60x = 13,253,479.98
  5. Step 5: Solve for x
    x = 13,253,479.98/3,176.60
  6. Step 6: Final answer
    x = 4,172.22

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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.