Home / 2,299.40-3,449.15-913.39

Finding the Fourth Proportional to 2,299.40, 3,449.15 and 913.39

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Solution

The fourth proportional to 2,299.40, 3,449.15 and 913.39 is: 1,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.40 : 3,449.15 = 913.39 : x
  2. Step 2: Convert to fraction form
    2,299.40/3,449.15 = 913.39/x
  3. Step 3: Cross multiply
    2,299.40x = 3,449.15 × 913.39
  4. Step 4: Simplify right side
    2,299.40x = 3,150,409.35
  5. Step 5: Solve for x
    x = 3,150,409.35/2,299.40
  6. Step 6: Final answer
    x = 1,370.10

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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.