Home / 6,979.57-10,469.34-1,785.43

Finding the Fourth Proportional to 6,979.57, 10,469.34 and 1,785.43

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Solution

The fourth proportional to 6,979.57, 10,469.34 and 1,785.43 is: 2,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.57 : 10,469.34 = 1,785.43 : x
  2. Step 2: Convert to fraction form
    6,979.57/10,469.34 = 1,785.43/x
  3. Step 3: Cross multiply
    6,979.57x = 10,469.34 × 1,785.43
  4. Step 4: Simplify right side
    6,979.57x = 18,692,273.72
  5. Step 5: Solve for x
    x = 18,692,273.72/6,979.57
  6. Step 6: Final answer
    x = 2,678.14

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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.