Home / 3,985.84-5,979.76-2,343.76

Finding the Fourth Proportional to 3,985.84, 5,979.76 and 2,343.76

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Solution

The fourth proportional to 3,985.84, 5,979.76 and 2,343.76 is: 3,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.84 : 5,979.76 = 2,343.76 : x
  2. Step 2: Convert to fraction form
    3,985.84/5,979.76 = 2,343.76/x
  3. Step 3: Cross multiply
    3,985.84x = 5,979.76 × 2,343.76
  4. Step 4: Simplify right side
    3,985.84x = 14,015,122.30
  5. Step 5: Solve for x
    x = 14,015,122.30/3,985.84
  6. Step 6: Final answer
    x = 3,516.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.