Home / 2,979.42-4,446.62-2,901.66

Finding the Fourth Proportional to 2,979.42, 4,446.62 and 2,901.66

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Solution

The fourth proportional to 2,979.42, 4,446.62 and 2,901.66 is: 4,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.42 : 4,446.62 = 2,901.66 : x
  2. Step 2: Convert to fraction form
    2,979.42/4,446.62 = 2,901.66/x
  3. Step 3: Cross multiply
    2,979.42x = 4,446.62 × 2,901.66
  4. Step 4: Simplify right side
    2,979.42x = 12,902,564.88
  5. Step 5: Solve for x
    x = 12,902,564.88/2,979.42
  6. Step 6: Final answer
    x = 4,330.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.