Home / 2,078.60-3,117.90-1,750.55

Finding the Fourth Proportional to 2,078.60, 3,117.90 and 1,750.55

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Solution

The fourth proportional to 2,078.60, 3,117.90 and 1,750.55 is: 2,625.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.60 : 3,117.90 = 1,750.55 : x
  2. Step 2: Convert to fraction form
    2,078.60/3,117.90 = 1,750.55/x
  3. Step 3: Cross multiply
    2,078.60x = 3,117.90 × 1,750.55
  4. Step 4: Simplify right side
    2,078.60x = 5,458,039.85
  5. Step 5: Solve for x
    x = 5,458,039.85/2,078.60
  6. Step 6: Final answer
    x = 2,625.83

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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.