Home / 7,131.46-9,841.79-4,107.03

Finding the Fourth Proportional to 7,131.46, 9,841.79 and 4,107.03

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Solution

The fourth proportional to 7,131.46, 9,841.79 and 4,107.03 is: 5,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.46 : 9,841.79 = 4,107.03 : x
  2. Step 2: Convert to fraction form
    7,131.46/9,841.79 = 4,107.03/x
  3. Step 3: Cross multiply
    7,131.46x = 9,841.79 × 4,107.03
  4. Step 4: Simplify right side
    7,131.46x = 40,420,526.78
  5. Step 5: Solve for x
    x = 40,420,526.78/7,131.46
  6. Step 6: Final answer
    x = 5,667.92

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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.