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Finding the Fourth Proportional to 3,397.88, 5,095.74 and 1,317.74

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Solution

The fourth proportional to 3,397.88, 5,095.74 and 1,317.74 is: 1,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.88 : 5,095.74 = 1,317.74 : x
  2. Step 2: Convert to fraction form
    3,397.88/5,095.74 = 1,317.74/x
  3. Step 3: Cross multiply
    3,397.88x = 5,095.74 × 1,317.74
  4. Step 4: Simplify right side
    3,397.88x = 6,714,860.43
  5. Step 5: Solve for x
    x = 6,714,860.43/3,397.88
  6. Step 6: Final answer
    x = 1,976.19

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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.