Home / 3,742.60-5,612.35-1,277.61

Finding the Fourth Proportional to 3,742.60, 5,612.35 and 1,277.61

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Solution

The fourth proportional to 3,742.60, 5,612.35 and 1,277.61 is: 1,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.60 : 5,612.35 = 1,277.61 : x
  2. Step 2: Convert to fraction form
    3,742.60/5,612.35 = 1,277.61/x
  3. Step 3: Cross multiply
    3,742.60x = 5,612.35 × 1,277.61
  4. Step 4: Simplify right side
    3,742.60x = 7,170,413.93
  5. Step 5: Solve for x
    x = 7,170,413.93/3,742.60
  6. Step 6: Final answer
    x = 1,915.89

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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.