Home / 7,238.79-10,850.85-2,859.30

Finding the Fourth Proportional to 7,238.79, 10,850.85 and 2,859.30

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Solution

The fourth proportional to 7,238.79, 10,850.85 and 2,859.30 is: 4,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.79 : 10,850.85 = 2,859.30 : x
  2. Step 2: Convert to fraction form
    7,238.79/10,850.85 = 2,859.30/x
  3. Step 3: Cross multiply
    7,238.79x = 10,850.85 × 2,859.30
  4. Step 4: Simplify right side
    7,238.79x = 31,025,835.41
  5. Step 5: Solve for x
    x = 31,025,835.41/7,238.79
  6. Step 6: Final answer
    x = 4,286.05

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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.