Home / 6,979.26-9,631.46-4,148.16

Finding the Fourth Proportional to 6,979.26, 9,631.46 and 4,148.16

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Solution

The fourth proportional to 6,979.26, 9,631.46 and 4,148.16 is: 5,724.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.26 : 9,631.46 = 4,148.16 : x
  2. Step 2: Convert to fraction form
    6,979.26/9,631.46 = 4,148.16/x
  3. Step 3: Cross multiply
    6,979.26x = 9,631.46 × 4,148.16
  4. Step 4: Simplify right side
    6,979.26x = 39,952,842.21
  5. Step 5: Solve for x
    x = 39,952,842.21/6,979.26
  6. Step 6: Final answer
    x = 5,724.51

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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.