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Finding the Fourth Proportional to 3,258, 4,496.04 and 1,860.78

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Solution

The fourth proportional to 3,258, 4,496.04 and 1,860.78 is: 2,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258 : 4,496.04 = 1,860.78 : x
  2. Step 2: Convert to fraction form
    3,258/4,496.04 = 1,860.78/x
  3. Step 3: Cross multiply
    3,258x = 4,496.04 × 1,860.78
  4. Step 4: Simplify right side
    3,258x = 8,366,141.31
  5. Step 5: Solve for x
    x = 8,366,141.31/3,258
  6. Step 6: Final answer
    x = 2,567.88

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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.