Home / 7,717.72-11,575.66-2,171.48

Finding the Fourth Proportional to 7,717.72, 11,575.66 and 2,171.48

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Solution

The fourth proportional to 7,717.72, 11,575.66 and 2,171.48 is: 3,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.72 : 11,575.66 = 2,171.48 : x
  2. Step 2: Convert to fraction form
    7,717.72/11,575.66 = 2,171.48/x
  3. Step 3: Cross multiply
    7,717.72x = 11,575.66 × 2,171.48
  4. Step 4: Simplify right side
    7,717.72x = 25,136,314.18
  5. Step 5: Solve for x
    x = 25,136,314.18/7,717.72
  6. Step 6: Final answer
    x = 3,256.96

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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.