Home / 5,178.69-7,767.97-1,283.06

Finding the Fourth Proportional to 5,178.69, 7,767.97 and 1,283.06

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Solution

The fourth proportional to 5,178.69, 7,767.97 and 1,283.06 is: 1,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.69 : 7,767.97 = 1,283.06 : x
  2. Step 2: Convert to fraction form
    5,178.69/7,767.97 = 1,283.06/x
  3. Step 3: Cross multiply
    5,178.69x = 7,767.97 × 1,283.06
  4. Step 4: Simplify right side
    5,178.69x = 9,966,787.80
  5. Step 5: Solve for x
    x = 9,966,787.80/5,178.69
  6. Step 6: Final answer
    x = 1,924.58

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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.