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Finding the Fourth Proportional to 3,397.40, 5,093.10 and 1,641.50

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Solution

The fourth proportional to 3,397.40, 5,093.10 and 1,641.50 is: 2,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.40 : 5,093.10 = 1,641.50 : x
  2. Step 2: Convert to fraction form
    3,397.40/5,093.10 = 1,641.50/x
  3. Step 3: Cross multiply
    3,397.40x = 5,093.10 × 1,641.50
  4. Step 4: Simplify right side
    3,397.40x = 8,360,323.65
  5. Step 5: Solve for x
    x = 8,360,323.65/3,397.40
  6. Step 6: Final answer
    x = 2,460.80

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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.