Home / 6,979.41-9,631.08-4,146.66

Finding the Fourth Proportional to 6,979.41, 9,631.08 and 4,146.66

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Solution

The fourth proportional to 6,979.41, 9,631.08 and 4,146.66 is: 5,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.41 : 9,631.08 = 4,146.66 : x
  2. Step 2: Convert to fraction form
    6,979.41/9,631.08 = 4,146.66/x
  3. Step 3: Cross multiply
    6,979.41x = 9,631.08 × 4,146.66
  4. Step 4: Simplify right side
    6,979.41x = 39,936,814.19
  5. Step 5: Solve for x
    x = 39,936,814.19/6,979.41
  6. Step 6: Final answer
    x = 5,722.09

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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.