Home / 5,170.60-7,756.05-1,886.15

Finding the Fourth Proportional to 5,170.60, 7,756.05 and 1,886.15

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Solution

The fourth proportional to 5,170.60, 7,756.05 and 1,886.15 is: 2,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.60 : 7,756.05 = 1,886.15 : x
  2. Step 2: Convert to fraction form
    5,170.60/7,756.05 = 1,886.15/x
  3. Step 3: Cross multiply
    5,170.60x = 7,756.05 × 1,886.15
  4. Step 4: Simplify right side
    5,170.60x = 14,629,100.17
  5. Step 5: Solve for x
    x = 14,629,100.17/5,170.60
  6. Step 6: Final answer
    x = 2,829.28

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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.