Home / 7,087.92-9,781.79-4,104.80

Finding the Fourth Proportional to 7,087.92, 9,781.79 and 4,104.80

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Solution

The fourth proportional to 7,087.92, 9,781.79 and 4,104.80 is: 5,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.92 : 9,781.79 = 4,104.80 : x
  2. Step 2: Convert to fraction form
    7,087.92/9,781.79 = 4,104.80/x
  3. Step 3: Cross multiply
    7,087.92x = 9,781.79 × 4,104.80
  4. Step 4: Simplify right side
    7,087.92x = 40,152,291.59
  5. Step 5: Solve for x
    x = 40,152,291.59/7,087.92
  6. Step 6: Final answer
    x = 5,664.89

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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.