Home / 3,894.90-5,374.96-2,126.52

Finding the Fourth Proportional to 3,894.90, 5,374.96 and 2,126.52

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Solution

The fourth proportional to 3,894.90, 5,374.96 and 2,126.52 is: 2,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.90 : 5,374.96 = 2,126.52 : x
  2. Step 2: Convert to fraction form
    3,894.90/5,374.96 = 2,126.52/x
  3. Step 3: Cross multiply
    3,894.90x = 5,374.96 × 2,126.52
  4. Step 4: Simplify right side
    3,894.90x = 11,429,959.94
  5. Step 5: Solve for x
    x = 11,429,959.94/3,894.90
  6. Step 6: Final answer
    x = 2,934.60

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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.