Home / 7,160.81-9,881.43-4,016.75

Finding the Fourth Proportional to 7,160.81, 9,881.43 and 4,016.75

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Solution

The fourth proportional to 7,160.81, 9,881.43 and 4,016.75 is: 5,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.81 : 9,881.43 = 4,016.75 : x
  2. Step 2: Convert to fraction form
    7,160.81/9,881.43 = 4,016.75/x
  3. Step 3: Cross multiply
    7,160.81x = 9,881.43 × 4,016.75
  4. Step 4: Simplify right side
    7,160.81x = 39,691,233.95
  5. Step 5: Solve for x
    x = 39,691,233.95/7,160.81
  6. Step 6: Final answer
    x = 5,542.84

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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.