Home / 5,540.74-8,312.48-1,645.14

Finding the Fourth Proportional to 5,540.74, 8,312.48 and 1,645.14

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Solution

The fourth proportional to 5,540.74, 8,312.48 and 1,645.14 is: 2,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.74 : 8,312.48 = 1,645.14 : x
  2. Step 2: Convert to fraction form
    5,540.74/8,312.48 = 1,645.14/x
  3. Step 3: Cross multiply
    5,540.74x = 8,312.48 × 1,645.14
  4. Step 4: Simplify right side
    5,540.74x = 13,675,193.35
  5. Step 5: Solve for x
    x = 13,675,193.35/5,540.74
  6. Step 6: Final answer
    x = 2,468.12

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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.