Home / 6,979.71-9,628.15-4,422.79

Finding the Fourth Proportional to 6,979.71, 9,628.15 and 4,422.79

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Solution

The fourth proportional to 6,979.71, 9,628.15 and 4,422.79 is: 6,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.71 : 9,628.15 = 4,422.79 : x
  2. Step 2: Convert to fraction form
    6,979.71/9,628.15 = 4,422.79/x
  3. Step 3: Cross multiply
    6,979.71x = 9,628.15 × 4,422.79
  4. Step 4: Simplify right side
    6,979.71x = 42,583,285.54
  5. Step 5: Solve for x
    x = 42,583,285.54/6,979.71
  6. Step 6: Final answer
    x = 6,101.01

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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.