Home / 2,278.62-3,411.74-1,889.82

Finding the Fourth Proportional to 2,278.62, 3,411.74 and 1,889.82

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Solution

The fourth proportional to 2,278.62, 3,411.74 and 1,889.82 is: 2,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.62 : 3,411.74 = 1,889.82 : x
  2. Step 2: Convert to fraction form
    2,278.62/3,411.74 = 1,889.82/x
  3. Step 3: Cross multiply
    2,278.62x = 3,411.74 × 1,889.82
  4. Step 4: Simplify right side
    2,278.62x = 6,447,565.04
  5. Step 5: Solve for x
    x = 6,447,565.04/2,278.62
  6. Step 6: Final answer
    x = 2,829.59

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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.