Home / 4,483.80-6,724.89-1,986.11

Finding the Fourth Proportional to 4,483.80, 6,724.89 and 1,986.11

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Solution

The fourth proportional to 4,483.80, 6,724.89 and 1,986.11 is: 2,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,483.80 : 6,724.89 = 1,986.11 : x
  2. Step 2: Convert to fraction form
    4,483.80/6,724.89 = 1,986.11/x
  3. Step 3: Cross multiply
    4,483.80x = 6,724.89 × 1,986.11
  4. Step 4: Simplify right side
    4,483.80x = 13,356,371.28
  5. Step 5: Solve for x
    x = 13,356,371.28/4,483.80
  6. Step 6: Final answer
    x = 2,978.81

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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.