Home / 3,979.92-5,492.64-2,301.84

Finding the Fourth Proportional to 3,979.92, 5,492.64 and 2,301.84

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Solution

The fourth proportional to 3,979.92, 5,492.64 and 2,301.84 is: 3,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.92 : 5,492.64 = 2,301.84 : x
  2. Step 2: Convert to fraction form
    3,979.92/5,492.64 = 2,301.84/x
  3. Step 3: Cross multiply
    3,979.92x = 5,492.64 × 2,301.84
  4. Step 4: Simplify right side
    3,979.92x = 12,643,178.46
  5. Step 5: Solve for x
    x = 12,643,178.46/3,979.92
  6. Step 6: Final answer
    x = 3,176.74

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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.