Home / 3,132.30-4,706.55-2,775.90

Finding the Fourth Proportional to 3,132.30, 4,706.55 and 2,775.90

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Solution

The fourth proportional to 3,132.30, 4,706.55 and 2,775.90 is: 4,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.30 : 4,706.55 = 2,775.90 : x
  2. Step 2: Convert to fraction form
    3,132.30/4,706.55 = 2,775.90/x
  3. Step 3: Cross multiply
    3,132.30x = 4,706.55 × 2,775.90
  4. Step 4: Simplify right side
    3,132.30x = 13,064,912.15
  5. Step 5: Solve for x
    x = 13,064,912.15/3,132.30
  6. Step 6: Final answer
    x = 4,171.03

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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.