Home / 3,119.68-4,675.48-1,268.64

Finding the Fourth Proportional to 3,119.68, 4,675.48 and 1,268.64

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Solution

The fourth proportional to 3,119.68, 4,675.48 and 1,268.64 is: 1,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.68 : 4,675.48 = 1,268.64 : x
  2. Step 2: Convert to fraction form
    3,119.68/4,675.48 = 1,268.64/x
  3. Step 3: Cross multiply
    3,119.68x = 4,675.48 × 1,268.64
  4. Step 4: Simplify right side
    3,119.68x = 5,931,500.95
  5. Step 5: Solve for x
    x = 5,931,500.95/3,119.68
  6. Step 6: Final answer
    x = 1,901.32

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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.