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Finding the Fourth Proportional to 3,159.78, 4,360.05 and 1,797

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Solution

The fourth proportional to 3,159.78, 4,360.05 and 1,797 is: 2,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.78 : 4,360.05 = 1,797 : x
  2. Step 2: Convert to fraction form
    3,159.78/4,360.05 = 1,797/x
  3. Step 3: Cross multiply
    3,159.78x = 4,360.05 × 1,797
  4. Step 4: Simplify right side
    3,159.78x = 7,835,009.85
  5. Step 5: Solve for x
    x = 7,835,009.85/3,159.78
  6. Step 6: Final answer
    x = 2,479.61

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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.