Home / 7,958.05-10,977.39-5,438.88

Finding the Fourth Proportional to 7,958.05, 10,977.39 and 5,438.88

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Solution

The fourth proportional to 7,958.05, 10,977.39 and 5,438.88 is: 7,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.05 : 10,977.39 = 5,438.88 : x
  2. Step 2: Convert to fraction form
    7,958.05/10,977.39 = 5,438.88/x
  3. Step 3: Cross multiply
    7,958.05x = 10,977.39 × 5,438.88
  4. Step 4: Simplify right side
    7,958.05x = 59,704,706.92
  5. Step 5: Solve for x
    x = 59,704,706.92/7,958.05
  6. Step 6: Final answer
    x = 7,502.43

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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.