Home / 2,806.15-3,873.88-2,175.25

Finding the Fourth Proportional to 2,806.15, 3,873.88 and 2,175.25

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Solution

The fourth proportional to 2,806.15, 3,873.88 and 2,175.25 is: 3,002.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.15 : 3,873.88 = 2,175.25 : x
  2. Step 2: Convert to fraction form
    2,806.15/3,873.88 = 2,175.25/x
  3. Step 3: Cross multiply
    2,806.15x = 3,873.88 × 2,175.25
  4. Step 4: Simplify right side
    2,806.15x = 8,426,657.47
  5. Step 5: Solve for x
    x = 8,426,657.47/2,806.15
  6. Step 6: Final answer
    x = 3,002.92

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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.