Home / 7,951.32-10,979.78-4,972.23

Finding the Fourth Proportional to 7,951.32, 10,979.78 and 4,972.23

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Solution

The fourth proportional to 7,951.32, 10,979.78 and 4,972.23 is: 6,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.32 : 10,979.78 = 4,972.23 : x
  2. Step 2: Convert to fraction form
    7,951.32/10,979.78 = 4,972.23/x
  3. Step 3: Cross multiply
    7,951.32x = 10,979.78 × 4,972.23
  4. Step 4: Simplify right side
    7,951.32x = 54,593,966.65
  5. Step 5: Solve for x
    x = 54,593,966.65/7,951.32
  6. Step 6: Final answer
    x = 6,866.03

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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.