Home / 1,476.78-2,209.09-1,213.82

Finding the Fourth Proportional to 1,476.78, 2,209.09 and 1,213.82

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Solution

The fourth proportional to 1,476.78, 2,209.09 and 1,213.82 is: 1,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.78 : 2,209.09 = 1,213.82 : x
  2. Step 2: Convert to fraction form
    1,476.78/2,209.09 = 1,213.82/x
  3. Step 3: Cross multiply
    1,476.78x = 2,209.09 × 1,213.82
  4. Step 4: Simplify right side
    1,476.78x = 2,681,437.62
  5. Step 5: Solve for x
    x = 2,681,437.62/1,476.78
  6. Step 6: Final answer
    x = 1,815.73

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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.