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Finding the Fourth Proportional to 2,397.87, 3,309.12 and 1,350

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Solution

The fourth proportional to 2,397.87, 3,309.12 and 1,350 is: 1,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.87 : 3,309.12 = 1,350 : x
  2. Step 2: Convert to fraction form
    2,397.87/3,309.12 = 1,350/x
  3. Step 3: Cross multiply
    2,397.87x = 3,309.12 × 1,350
  4. Step 4: Simplify right side
    2,397.87x = 4,467,312
  5. Step 5: Solve for x
    x = 4,467,312/2,397.87
  6. Step 6: Final answer
    x = 1,863.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.