Home / 6,979.20-9,632.81-4,292.72

Finding the Fourth Proportional to 6,979.20, 9,632.81 and 4,292.72

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Solution

The fourth proportional to 6,979.20, 9,632.81 and 4,292.72 is: 5,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.20 : 9,632.81 = 4,292.72 : x
  2. Step 2: Convert to fraction form
    6,979.20/9,632.81 = 4,292.72/x
  3. Step 3: Cross multiply
    6,979.20x = 9,632.81 × 4,292.72
  4. Step 4: Simplify right side
    6,979.20x = 41,350,983.40
  5. Step 5: Solve for x
    x = 41,350,983.40/6,979.20
  6. Step 6: Final answer
    x = 5,924.89

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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.