Home / 7,087.38-9,780.75-4,104.15

Finding the Fourth Proportional to 7,087.38, 9,780.75 and 4,104.15

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Solution

The fourth proportional to 7,087.38, 9,780.75 and 4,104.15 is: 5,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.38 : 9,780.75 = 4,104.15 : x
  2. Step 2: Convert to fraction form
    7,087.38/9,780.75 = 4,104.15/x
  3. Step 3: Cross multiply
    7,087.38x = 9,780.75 × 4,104.15
  4. Step 4: Simplify right side
    7,087.38x = 40,141,665.11
  5. Step 5: Solve for x
    x = 40,141,665.11/7,087.38
  6. Step 6: Final answer
    x = 5,663.82

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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.