Home / 1,283.88-1,926.18-418.08

Finding the Fourth Proportional to 1,283.88, 1,926.18 and 418.08

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Solution

The fourth proportional to 1,283.88, 1,926.18 and 418.08 is: 627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.88 : 1,926.18 = 418.08 : x
  2. Step 2: Convert to fraction form
    1,283.88/1,926.18 = 418.08/x
  3. Step 3: Cross multiply
    1,283.88x = 1,926.18 × 418.08
  4. Step 4: Simplify right side
    1,283.88x = 805,297.33
  5. Step 5: Solve for x
    x = 805,297.33/1,283.88
  6. Step 6: Final answer
    x = 627.24

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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.