Home / 6,979.14-10,472.28-4,640.75

Finding the Fourth Proportional to 6,979.14, 10,472.28 and 4,640.75

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Solution

The fourth proportional to 6,979.14, 10,472.28 and 4,640.75 is: 6,963.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.14 : 10,472.28 = 4,640.75 : x
  2. Step 2: Convert to fraction form
    6,979.14/10,472.28 = 4,640.75/x
  3. Step 3: Cross multiply
    6,979.14x = 10,472.28 × 4,640.75
  4. Step 4: Simplify right side
    6,979.14x = 48,599,181.05
  5. Step 5: Solve for x
    x = 48,599,181.05/6,979.14
  6. Step 6: Final answer
    x = 6,963.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.