Home / 2,979.81-4,108.23-2,446.74

Finding the Fourth Proportional to 2,979.81, 4,108.23 and 2,446.74

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Solution

The fourth proportional to 2,979.81, 4,108.23 and 2,446.74 is: 3,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.81 : 4,108.23 = 2,446.74 : x
  2. Step 2: Convert to fraction form
    2,979.81/4,108.23 = 2,446.74/x
  3. Step 3: Cross multiply
    2,979.81x = 4,108.23 × 2,446.74
  4. Step 4: Simplify right side
    2,979.81x = 10,051,770.67
  5. Step 5: Solve for x
    x = 10,051,770.67/2,979.81
  6. Step 6: Final answer
    x = 3,373.29

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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.