Home / 7,726.72-11,588.12-2,981.92

Finding the Fourth Proportional to 7,726.72, 11,588.12 and 2,981.92

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Solution

The fourth proportional to 7,726.72, 11,588.12 and 2,981.92 is: 4,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.72 : 11,588.12 = 2,981.92 : x
  2. Step 2: Convert to fraction form
    7,726.72/11,588.12 = 2,981.92/x
  3. Step 3: Cross multiply
    7,726.72x = 11,588.12 × 2,981.92
  4. Step 4: Simplify right side
    7,726.72x = 34,554,846.79
  5. Step 5: Solve for x
    x = 34,554,846.79/7,726.72
  6. Step 6: Final answer
    x = 4,472.12

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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.