Home / 3,452.24-5,178.43-987.14

Finding the Fourth Proportional to 3,452.24, 5,178.43 and 987.14

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Solution

The fourth proportional to 3,452.24, 5,178.43 and 987.14 is: 1,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.24 : 5,178.43 = 987.14 : x
  2. Step 2: Convert to fraction form
    3,452.24/5,178.43 = 987.14/x
  3. Step 3: Cross multiply
    3,452.24x = 5,178.43 × 987.14
  4. Step 4: Simplify right side
    3,452.24x = 5,111,835.39
  5. Step 5: Solve for x
    x = 5,111,835.39/3,452.24
  6. Step 6: Final answer
    x = 1,480.73

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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.