Home / 4,965.40-7,447.68-1,455.12

Finding the Fourth Proportional to 4,965.40, 7,447.68 and 1,455.12

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Solution

The fourth proportional to 4,965.40, 7,447.68 and 1,455.12 is: 2,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.40 : 7,447.68 = 1,455.12 : x
  2. Step 2: Convert to fraction form
    4,965.40/7,447.68 = 1,455.12/x
  3. Step 3: Cross multiply
    4,965.40x = 7,447.68 × 1,455.12
  4. Step 4: Simplify right side
    4,965.40x = 10,837,268.12
  5. Step 5: Solve for x
    x = 10,837,268.12/4,965.40
  6. Step 6: Final answer
    x = 2,182.56

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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.