Home / 3,878.88-5,351.04-2,386.26

Finding the Fourth Proportional to 3,878.88, 5,351.04 and 2,386.26

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Solution

The fourth proportional to 3,878.88, 5,351.04 and 2,386.26 is: 3,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.88 : 5,351.04 = 2,386.26 : x
  2. Step 2: Convert to fraction form
    3,878.88/5,351.04 = 2,386.26/x
  3. Step 3: Cross multiply
    3,878.88x = 5,351.04 × 2,386.26
  4. Step 4: Simplify right side
    3,878.88x = 12,768,972.71
  5. Step 5: Solve for x
    x = 12,768,972.71/3,878.88
  6. Step 6: Final answer
    x = 3,291.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.