Home / 3,115.64-4,675.08-1,268.12

Finding the Fourth Proportional to 3,115.64, 4,675.08 and 1,268.12

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Solution

The fourth proportional to 3,115.64, 4,675.08 and 1,268.12 is: 1,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.64 : 4,675.08 = 1,268.12 : x
  2. Step 2: Convert to fraction form
    3,115.64/4,675.08 = 1,268.12/x
  3. Step 3: Cross multiply
    3,115.64x = 4,675.08 × 1,268.12
  4. Step 4: Simplify right side
    3,115.64x = 5,928,578.89
  5. Step 5: Solve for x
    x = 5,928,578.89/3,115.64
  6. Step 6: Final answer
    x = 1,902.84

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1.5x scale

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.