Home / 6,862.26-9,468.89-3,878.07

Finding the Fourth Proportional to 6,862.26, 9,468.89 and 3,878.07

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Solution

The fourth proportional to 6,862.26, 9,468.89 and 3,878.07 is: 5,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.26 : 9,468.89 = 3,878.07 : x
  2. Step 2: Convert to fraction form
    6,862.26/9,468.89 = 3,878.07/x
  3. Step 3: Cross multiply
    6,862.26x = 9,468.89 × 3,878.07
  4. Step 4: Simplify right side
    6,862.26x = 36,720,970.90
  5. Step 5: Solve for x
    x = 36,720,970.90/6,862.26
  6. Step 6: Final answer
    x = 5,351.15

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1.5x scale

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.