Home / 7,781.47-11,672.40-2,234.59

Finding the Fourth Proportional to 7,781.47, 11,672.40 and 2,234.59

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Solution

The fourth proportional to 7,781.47, 11,672.40 and 2,234.59 is: 3,351.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.47 : 11,672.40 = 2,234.59 : x
  2. Step 2: Convert to fraction form
    7,781.47/11,672.40 = 2,234.59/x
  3. Step 3: Cross multiply
    7,781.47x = 11,672.40 × 2,234.59
  4. Step 4: Simplify right side
    7,781.47x = 26,083,007.51
  5. Step 5: Solve for x
    x = 26,083,007.51/7,781.47
  6. Step 6: Final answer
    x = 3,351.94

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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.