Home / 7,850.43-11,777.38-2,585.23

Finding the Fourth Proportional to 7,850.43, 11,777.38 and 2,585.23

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Solution

The fourth proportional to 7,850.43, 11,777.38 and 2,585.23 is: 3,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.43 : 11,777.38 = 2,585.23 : x
  2. Step 2: Convert to fraction form
    7,850.43/11,777.38 = 2,585.23/x
  3. Step 3: Cross multiply
    7,850.43x = 11,777.38 × 2,585.23
  4. Step 4: Simplify right side
    7,850.43x = 30,447,236.10
  5. Step 5: Solve for x
    x = 30,447,236.10/7,850.43
  6. Step 6: Final answer
    x = 3,878.42

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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.