Home / 7,637.78-11,456.69-2,091.17

Finding the Fourth Proportional to 7,637.78, 11,456.69 and 2,091.17

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Solution

The fourth proportional to 7,637.78, 11,456.69 and 2,091.17 is: 3,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.78 : 11,456.69 = 2,091.17 : x
  2. Step 2: Convert to fraction form
    7,637.78/11,456.69 = 2,091.17/x
  3. Step 3: Cross multiply
    7,637.78x = 11,456.69 × 2,091.17
  4. Step 4: Simplify right side
    7,637.78x = 23,957,904.61
  5. Step 5: Solve for x
    x = 23,957,904.61/7,637.78
  6. Step 6: Final answer
    x = 3,136.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.