Home / 5,170.75-7,751.51-1,881.53

Finding the Fourth Proportional to 5,170.75, 7,751.51 and 1,881.53

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Solution

The fourth proportional to 5,170.75, 7,751.51 and 1,881.53 is: 2,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.75 : 7,751.51 = 1,881.53 : x
  2. Step 2: Convert to fraction form
    5,170.75/7,751.51 = 1,881.53/x
  3. Step 3: Cross multiply
    5,170.75x = 7,751.51 × 1,881.53
  4. Step 4: Simplify right side
    5,170.75x = 14,584,686.57
  5. Step 5: Solve for x
    x = 14,584,686.57/5,170.75
  6. Step 6: Final answer
    x = 2,820.61

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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.