Home / 2,890.31-4,333.84-1,967.11

Finding the Fourth Proportional to 2,890.31, 4,333.84 and 1,967.11

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Solution

The fourth proportional to 2,890.31, 4,333.84 and 1,967.11 is: 2,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.31 : 4,333.84 = 1,967.11 : x
  2. Step 2: Convert to fraction form
    2,890.31/4,333.84 = 1,967.11/x
  3. Step 3: Cross multiply
    2,890.31x = 4,333.84 × 1,967.11
  4. Step 4: Simplify right side
    2,890.31x = 8,525,124.25
  5. Step 5: Solve for x
    x = 8,525,124.25/2,890.31
  6. Step 6: Final answer
    x = 2,949.56

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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.