Home / 3,177.25-4,766.60-1,125.25

Finding the Fourth Proportional to 3,177.25, 4,766.60 and 1,125.25

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Solution

The fourth proportional to 3,177.25, 4,766.60 and 1,125.25 is: 1,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.25 : 4,766.60 = 1,125.25 : x
  2. Step 2: Convert to fraction form
    3,177.25/4,766.60 = 1,125.25/x
  3. Step 3: Cross multiply
    3,177.25x = 4,766.60 × 1,125.25
  4. Step 4: Simplify right side
    3,177.25x = 5,363,611.02
  5. Step 5: Solve for x
    x = 5,363,611.02/3,177.25
  6. Step 6: Final answer
    x = 1,688.13

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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.