Home / 3,990.24-5,985.84-2,041.92

Finding the Fourth Proportional to 3,990.24, 5,985.84 and 2,041.92

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Solution

The fourth proportional to 3,990.24, 5,985.84 and 2,041.92 is: 3,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.24 : 5,985.84 = 2,041.92 : x
  2. Step 2: Convert to fraction form
    3,990.24/5,985.84 = 2,041.92/x
  3. Step 3: Cross multiply
    3,990.24x = 5,985.84 × 2,041.92
  4. Step 4: Simplify right side
    3,990.24x = 12,222,606.41
  5. Step 5: Solve for x
    x = 12,222,606.41/3,990.24
  6. Step 6: Final answer
    x = 3,063.13

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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.