Home / 6,870.25-9,481.41-3,886.07

Finding the Fourth Proportional to 6,870.25, 9,481.41 and 3,886.07

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Solution

The fourth proportional to 6,870.25, 9,481.41 and 3,886.07 is: 5,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.25 : 9,481.41 = 3,886.07 : x
  2. Step 2: Convert to fraction form
    6,870.25/9,481.41 = 3,886.07/x
  3. Step 3: Cross multiply
    6,870.25x = 9,481.41 × 3,886.07
  4. Step 4: Simplify right side
    6,870.25x = 36,845,422.96
  5. Step 5: Solve for x
    x = 36,845,422.96/6,870.25
  6. Step 6: Final answer
    x = 5,363.04

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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.