Home / 5,447.28-7,513.12-3,771.49

Finding the Fourth Proportional to 5,447.28, 7,513.12 and 3,771.49

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Solution

The fourth proportional to 5,447.28, 7,513.12 and 3,771.49 is: 5,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.28 : 7,513.12 = 3,771.49 : x
  2. Step 2: Convert to fraction form
    5,447.28/7,513.12 = 3,771.49/x
  3. Step 3: Cross multiply
    5,447.28x = 7,513.12 × 3,771.49
  4. Step 4: Simplify right side
    5,447.28x = 28,335,642.88
  5. Step 5: Solve for x
    x = 28,335,642.88/5,447.28
  6. Step 6: Final answer
    x = 5,201.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.