Home / 3,487.74-5,231.68-1,268.15

Finding the Fourth Proportional to 3,487.74, 5,231.68 and 1,268.15

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Solution

The fourth proportional to 3,487.74, 5,231.68 and 1,268.15 is: 1,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.74 : 5,231.68 = 1,268.15 : x
  2. Step 2: Convert to fraction form
    3,487.74/5,231.68 = 1,268.15/x
  3. Step 3: Cross multiply
    3,487.74x = 5,231.68 × 1,268.15
  4. Step 4: Simplify right side
    3,487.74x = 6,634,548.65
  5. Step 5: Solve for x
    x = 6,634,548.65/3,487.74
  6. Step 6: Final answer
    x = 1,902.25

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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.