Home / 2,294.88-3,439.80-1,321.20

Finding the Fourth Proportional to 2,294.88, 3,439.80 and 1,321.20

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Solution

The fourth proportional to 2,294.88, 3,439.80 and 1,321.20 is: 1,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,294.88 : 3,439.80 = 1,321.20 : x
  2. Step 2: Convert to fraction form
    2,294.88/3,439.80 = 1,321.20/x
  3. Step 3: Cross multiply
    2,294.88x = 3,439.80 × 1,321.20
  4. Step 4: Simplify right side
    2,294.88x = 4,544,663.76
  5. Step 5: Solve for x
    x = 4,544,663.76/2,294.88
  6. Step 6: Final answer
    x = 1,980.35

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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.