Home / 3,219.03-4,442.31-1,802.79

Finding the Fourth Proportional to 3,219.03, 4,442.31 and 1,802.79

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Solution

The fourth proportional to 3,219.03, 4,442.31 and 1,802.79 is: 2,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.03 : 4,442.31 = 1,802.79 : x
  2. Step 2: Convert to fraction form
    3,219.03/4,442.31 = 1,802.79/x
  3. Step 3: Cross multiply
    3,219.03x = 4,442.31 × 1,802.79
  4. Step 4: Simplify right side
    3,219.03x = 8,008,552.04
  5. Step 5: Solve for x
    x = 8,008,552.04/3,219.03
  6. Step 6: Final answer
    x = 2,487.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.