Home / 3,990.58-5,985.38-2,325.64

Finding the Fourth Proportional to 3,990.58, 5,985.38 and 2,325.64

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Solution

The fourth proportional to 3,990.58, 5,985.38 and 2,325.64 is: 3,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.58 : 5,985.38 = 2,325.64 : x
  2. Step 2: Convert to fraction form
    3,990.58/5,985.38 = 2,325.64/x
  3. Step 3: Cross multiply
    3,990.58x = 5,985.38 × 2,325.64
  4. Step 4: Simplify right side
    3,990.58x = 13,919,839.14
  5. Step 5: Solve for x
    x = 13,919,839.14/3,990.58
  6. Step 6: Final answer
    x = 3,488.17

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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.