Home / 7,520.31-10,377.90-4,163.05

Finding the Fourth Proportional to 7,520.31, 10,377.90 and 4,163.05

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Solution

The fourth proportional to 7,520.31, 10,377.90 and 4,163.05 is: 5,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.31 : 10,377.90 = 4,163.05 : x
  2. Step 2: Convert to fraction form
    7,520.31/10,377.90 = 4,163.05/x
  3. Step 3: Cross multiply
    7,520.31x = 10,377.90 × 4,163.05
  4. Step 4: Simplify right side
    7,520.31x = 43,203,711.39
  5. Step 5: Solve for x
    x = 43,203,711.39/7,520.31
  6. Step 6: Final answer
    x = 5,744.94

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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.