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Finding the Fourth Proportional to 1,796.64, 2,479.65 and 1,353.75

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Solution

The fourth proportional to 1,796.64, 2,479.65 and 1,353.75 is: 1,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.64 : 2,479.65 = 1,353.75 : x
  2. Step 2: Convert to fraction form
    1,796.64/2,479.65 = 1,353.75/x
  3. Step 3: Cross multiply
    1,796.64x = 2,479.65 × 1,353.75
  4. Step 4: Simplify right side
    1,796.64x = 3,356,826.19
  5. Step 5: Solve for x
    x = 3,356,826.19/1,796.64
  6. Step 6: Final answer
    x = 1,868.39

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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.