Home / 5,011.80-7,520.40-2,238.90

Finding the Fourth Proportional to 5,011.80, 7,520.40 and 2,238.90

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Solution

The fourth proportional to 5,011.80, 7,520.40 and 2,238.90 is: 3,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.80 : 7,520.40 = 2,238.90 : x
  2. Step 2: Convert to fraction form
    5,011.80/7,520.40 = 2,238.90/x
  3. Step 3: Cross multiply
    5,011.80x = 7,520.40 × 2,238.90
  4. Step 4: Simplify right side
    5,011.80x = 16,837,423.56
  5. Step 5: Solve for x
    x = 16,837,423.56/5,011.80
  6. Step 6: Final answer
    x = 3,359.56

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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.