Home / 3,979.16-5,492.93-2,685.91

Finding the Fourth Proportional to 3,979.16, 5,492.93 and 2,685.91

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Solution

The fourth proportional to 3,979.16, 5,492.93 and 2,685.91 is: 3,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.16 : 5,492.93 = 2,685.91 : x
  2. Step 2: Convert to fraction form
    3,979.16/5,492.93 = 2,685.91/x
  3. Step 3: Cross multiply
    3,979.16x = 5,492.93 × 2,685.91
  4. Step 4: Simplify right side
    3,979.16x = 14,753,534.46
  5. Step 5: Solve for x
    x = 14,753,534.46/3,979.16
  6. Step 6: Final answer
    x = 3,707.70

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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.