Home / 2,990.31-4,481.51-2,294.31

Finding the Fourth Proportional to 2,990.31, 4,481.51 and 2,294.31

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Solution

The fourth proportional to 2,990.31, 4,481.51 and 2,294.31 is: 3,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.31 : 4,481.51 = 2,294.31 : x
  2. Step 2: Convert to fraction form
    2,990.31/4,481.51 = 2,294.31/x
  3. Step 3: Cross multiply
    2,990.31x = 4,481.51 × 2,294.31
  4. Step 4: Simplify right side
    2,990.31x = 10,281,973.21
  5. Step 5: Solve for x
    x = 10,281,973.21/2,990.31
  6. Step 6: Final answer
    x = 3,438.43

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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.