Home / 3,986.30-5,981.06-1,648.22

Finding the Fourth Proportional to 3,986.30, 5,981.06 and 1,648.22

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Solution

The fourth proportional to 3,986.30, 5,981.06 and 1,648.22 is: 2,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.30 : 5,981.06 = 1,648.22 : x
  2. Step 2: Convert to fraction form
    3,986.30/5,981.06 = 1,648.22/x
  3. Step 3: Cross multiply
    3,986.30x = 5,981.06 × 1,648.22
  4. Step 4: Simplify right side
    3,986.30x = 9,858,102.71
  5. Step 5: Solve for x
    x = 9,858,102.71/3,986.30
  6. Step 6: Final answer
    x = 2,473.00

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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.