Home / 4,979.34-6,871.23-3,717.90

Finding the Fourth Proportional to 4,979.34, 6,871.23 and 3,717.90

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Solution

The fourth proportional to 4,979.34, 6,871.23 and 3,717.90 is: 5,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.34 : 6,871.23 = 3,717.90 : x
  2. Step 2: Convert to fraction form
    4,979.34/6,871.23 = 3,717.90/x
  3. Step 3: Cross multiply
    4,979.34x = 6,871.23 × 3,717.90
  4. Step 4: Simplify right side
    4,979.34x = 25,546,546.02
  5. Step 5: Solve for x
    x = 25,546,546.02/4,979.34
  6. Step 6: Final answer
    x = 5,130.51

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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.