Home / 5,284.36-7,926.18-1,388.80

Finding the Fourth Proportional to 5,284.36, 7,926.18 and 1,388.80

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Solution

The fourth proportional to 5,284.36, 7,926.18 and 1,388.80 is: 2,083.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.36 : 7,926.18 = 1,388.80 : x
  2. Step 2: Convert to fraction form
    5,284.36/7,926.18 = 1,388.80/x
  3. Step 3: Cross multiply
    5,284.36x = 7,926.18 × 1,388.80
  4. Step 4: Simplify right side
    5,284.36x = 11,007,878.78
  5. Step 5: Solve for x
    x = 11,007,878.78/5,284.36
  6. Step 6: Final answer
    x = 2,083.11

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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.