Home / 7,328.35-10,992.52-1,781.66

Finding the Fourth Proportional to 7,328.35, 10,992.52 and 1,781.66

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Solution

The fourth proportional to 7,328.35, 10,992.52 and 1,781.66 is: 2,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.35 : 10,992.52 = 1,781.66 : x
  2. Step 2: Convert to fraction form
    7,328.35/10,992.52 = 1,781.66/x
  3. Step 3: Cross multiply
    7,328.35x = 10,992.52 × 1,781.66
  4. Step 4: Simplify right side
    7,328.35x = 19,584,873.77
  5. Step 5: Solve for x
    x = 19,584,873.77/7,328.35
  6. Step 6: Final answer
    x = 2,672.48

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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.