Home / 3,724.80-5,579.10-3,314.40

Finding the Fourth Proportional to 3,724.80, 5,579.10 and 3,314.40

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Solution

The fourth proportional to 3,724.80, 5,579.10 and 3,314.40 is: 4,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.80 : 5,579.10 = 3,314.40 : x
  2. Step 2: Convert to fraction form
    3,724.80/5,579.10 = 3,314.40/x
  3. Step 3: Cross multiply
    3,724.80x = 5,579.10 × 3,314.40
  4. Step 4: Simplify right side
    3,724.80x = 18,491,369.04
  5. Step 5: Solve for x
    x = 18,491,369.04/3,724.80
  6. Step 6: Final answer
    x = 4,964.39

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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.