Home / 3,447.55-5,172.72-1,885.66

Finding the Fourth Proportional to 3,447.55, 5,172.72 and 1,885.66

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Solution

The fourth proportional to 3,447.55, 5,172.72 and 1,885.66 is: 2,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.55 : 5,172.72 = 1,885.66 : x
  2. Step 2: Convert to fraction form
    3,447.55/5,172.72 = 1,885.66/x
  3. Step 3: Cross multiply
    3,447.55x = 5,172.72 × 1,885.66
  4. Step 4: Simplify right side
    3,447.55x = 9,753,965.33
  5. Step 5: Solve for x
    x = 9,753,965.33/3,447.55
  6. Step 6: Final answer
    x = 2,829.25

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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.