Home / 3,979.11-5,492.64-3,417.32

Finding the Fourth Proportional to 3,979.11, 5,492.64 and 3,417.32

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Solution

The fourth proportional to 3,979.11, 5,492.64 and 3,417.32 is: 4,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.11 : 5,492.64 = 3,417.32 : x
  2. Step 2: Convert to fraction form
    3,979.11/5,492.64 = 3,417.32/x
  3. Step 3: Cross multiply
    3,979.11x = 5,492.64 × 3,417.32
  4. Step 4: Simplify right side
    3,979.11x = 18,770,108.52
  5. Step 5: Solve for x
    x = 18,770,108.52/3,979.11
  6. Step 6: Final answer
    x = 4,717.16

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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.