Home / 7,162.97-9,885.14-4,329.78

Finding the Fourth Proportional to 7,162.97, 9,885.14 and 4,329.78

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Solution

The fourth proportional to 7,162.97, 9,885.14 and 4,329.78 is: 5,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.97 : 9,885.14 = 4,329.78 : x
  2. Step 2: Convert to fraction form
    7,162.97/9,885.14 = 4,329.78/x
  3. Step 3: Cross multiply
    7,162.97x = 9,885.14 × 4,329.78
  4. Step 4: Simplify right side
    7,162.97x = 42,800,459.82
  5. Step 5: Solve for x
    x = 42,800,459.82/7,162.97
  6. Step 6: Final answer
    x = 5,975.24

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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.