Home / 3,452.04-5,178.39-986.79

Finding the Fourth Proportional to 3,452.04, 5,178.39 and 986.79

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Solution

The fourth proportional to 3,452.04, 5,178.39 and 986.79 is: 1,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.04 : 5,178.39 = 986.79 : x
  2. Step 2: Convert to fraction form
    3,452.04/5,178.39 = 986.79/x
  3. Step 3: Cross multiply
    3,452.04x = 5,178.39 × 986.79
  4. Step 4: Simplify right side
    3,452.04x = 5,109,983.47
  5. Step 5: Solve for x
    x = 5,109,983.47/3,452.04
  6. Step 6: Final answer
    x = 1,480.28

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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.