Home / 7,141.08-9,854.88-3,996.96

Finding the Fourth Proportional to 7,141.08, 9,854.88 and 3,996.96

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Solution

The fourth proportional to 7,141.08, 9,854.88 and 3,996.96 is: 5,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.08 : 9,854.88 = 3,996.96 : x
  2. Step 2: Convert to fraction form
    7,141.08/9,854.88 = 3,996.96/x
  3. Step 3: Cross multiply
    7,141.08x = 9,854.88 × 3,996.96
  4. Step 4: Simplify right side
    7,141.08x = 39,389,561.16
  5. Step 5: Solve for x
    x = 39,389,561.16/7,141.08
  6. Step 6: Final answer
    x = 5,515.91

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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.