Home / 2,619.18-3,929.39-1,158.75

Finding the Fourth Proportional to 2,619.18, 3,929.39 and 1,158.75

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Solution

The fourth proportional to 2,619.18, 3,929.39 and 1,158.75 is: 1,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.18 : 3,929.39 = 1,158.75 : x
  2. Step 2: Convert to fraction form
    2,619.18/3,929.39 = 1,158.75/x
  3. Step 3: Cross multiply
    2,619.18x = 3,929.39 × 1,158.75
  4. Step 4: Simplify right side
    2,619.18x = 4,553,174.87
  5. Step 5: Solve for x
    x = 4,553,174.87/2,619.18
  6. Step 6: Final answer
    x = 1,738.40

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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.