Home / 7,475.82-11,209.05-3,315.66

Finding the Fourth Proportional to 7,475.82, 11,209.05 and 3,315.66

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Solution

The fourth proportional to 7,475.82, 11,209.05 and 3,315.66 is: 4,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.82 : 11,209.05 = 3,315.66 : x
  2. Step 2: Convert to fraction form
    7,475.82/11,209.05 = 3,315.66/x
  3. Step 3: Cross multiply
    7,475.82x = 11,209.05 × 3,315.66
  4. Step 4: Simplify right side
    7,475.82x = 37,165,398.72
  5. Step 5: Solve for x
    x = 37,165,398.72/7,475.82
  6. Step 6: Final answer
    x = 4,971.41

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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.