Home / 3,219.31-4,442.62-1,802.99

Finding the Fourth Proportional to 3,219.31, 4,442.62 and 1,802.99

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Solution

The fourth proportional to 3,219.31, 4,442.62 and 1,802.99 is: 2,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.31 : 4,442.62 = 1,802.99 : x
  2. Step 2: Convert to fraction form
    3,219.31/4,442.62 = 1,802.99/x
  3. Step 3: Cross multiply
    3,219.31x = 4,442.62 × 1,802.99
  4. Step 4: Simplify right side
    3,219.31x = 8,009,999.43
  5. Step 5: Solve for x
    x = 8,009,999.43/3,219.31
  6. Step 6: Final answer
    x = 2,488.11

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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.