Home / 2,802.80-3,867.78-1,755.44

Finding the Fourth Proportional to 2,802.80, 3,867.78 and 1,755.44

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Solution

The fourth proportional to 2,802.80, 3,867.78 and 1,755.44 is: 2,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.80 : 3,867.78 = 1,755.44 : x
  2. Step 2: Convert to fraction form
    2,802.80/3,867.78 = 1,755.44/x
  3. Step 3: Cross multiply
    2,802.80x = 3,867.78 × 1,755.44
  4. Step 4: Simplify right side
    2,802.80x = 6,789,655.72
  5. Step 5: Solve for x
    x = 6,789,655.72/2,802.80
  6. Step 6: Final answer
    x = 2,422.45

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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.