Home / 7,179.92-9,908.28-4,036.12

Finding the Fourth Proportional to 7,179.92, 9,908.28 and 4,036.12

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Solution

The fourth proportional to 7,179.92, 9,908.28 and 4,036.12 is: 5,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.92 : 9,908.28 = 4,036.12 : x
  2. Step 2: Convert to fraction form
    7,179.92/9,908.28 = 4,036.12/x
  3. Step 3: Cross multiply
    7,179.92x = 9,908.28 × 4,036.12
  4. Step 4: Simplify right side
    7,179.92x = 39,991,007.07
  5. Step 5: Solve for x
    x = 39,991,007.07/7,179.92
  6. Step 6: Final answer
    x = 5,569.84

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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.