Home / 5,170.67-7,756.15-1,886.22

Finding the Fourth Proportional to 5,170.67, 7,756.15 and 1,886.22

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Solution

The fourth proportional to 5,170.67, 7,756.15 and 1,886.22 is: 2,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.67 : 7,756.15 = 1,886.22 : x
  2. Step 2: Convert to fraction form
    5,170.67/7,756.15 = 1,886.22/x
  3. Step 3: Cross multiply
    5,170.67x = 7,756.15 × 1,886.22
  4. Step 4: Simplify right side
    5,170.67x = 14,629,805.25
  5. Step 5: Solve for x
    x = 14,629,805.25/5,170.67
  6. Step 6: Final answer
    x = 2,829.38

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1.5x scale

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.