Home / 3,950.80-5,452.08-2,378.56

Finding the Fourth Proportional to 3,950.80, 5,452.08 and 2,378.56

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Solution

The fourth proportional to 3,950.80, 5,452.08 and 2,378.56 is: 3,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.80 : 5,452.08 = 2,378.56 : x
  2. Step 2: Convert to fraction form
    3,950.80/5,452.08 = 2,378.56/x
  3. Step 3: Cross multiply
    3,950.80x = 5,452.08 × 2,378.56
  4. Step 4: Simplify right side
    3,950.80x = 12,968,099.40
  5. Step 5: Solve for x
    x = 12,968,099.40/3,950.80
  6. Step 6: Final answer
    x = 3,282.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.