Home / 5,296.29-7,947-2,178.60

Finding the Fourth Proportional to 5,296.29, 7,947 and 2,178.60

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Solution

The fourth proportional to 5,296.29, 7,947 and 2,178.60 is: 3,268.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.29 : 7,947 = 2,178.60 : x
  2. Step 2: Convert to fraction form
    5,296.29/7,947 = 2,178.60/x
  3. Step 3: Cross multiply
    5,296.29x = 7,947 × 2,178.60
  4. Step 4: Simplify right side
    5,296.29x = 17,313,334.20
  5. Step 5: Solve for x
    x = 17,313,334.20/5,296.29
  6. Step 6: Final answer
    x = 3,268.96

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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.