Home / 3,218.95-4,442.11-1,802.64

Finding the Fourth Proportional to 3,218.95, 4,442.11 and 1,802.64

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Solution

The fourth proportional to 3,218.95, 4,442.11 and 1,802.64 is: 2,487.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.95 : 4,442.11 = 1,802.64 : x
  2. Step 2: Convert to fraction form
    3,218.95/4,442.11 = 1,802.64/x
  3. Step 3: Cross multiply
    3,218.95x = 4,442.11 × 1,802.64
  4. Step 4: Simplify right side
    3,218.95x = 8,007,525.17
  5. Step 5: Solve for x
    x = 8,007,525.17/3,218.95
  6. Step 6: Final answer
    x = 2,487.62

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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.