Home / 2,802.03-3,868.19-2,171.13

Finding the Fourth Proportional to 2,802.03, 3,868.19 and 2,171.13

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Solution

The fourth proportional to 2,802.03, 3,868.19 and 2,171.13 is: 2,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.03 : 3,868.19 = 2,171.13 : x
  2. Step 2: Convert to fraction form
    2,802.03/3,868.19 = 2,171.13/x
  3. Step 3: Cross multiply
    2,802.03x = 3,868.19 × 2,171.13
  4. Step 4: Simplify right side
    2,802.03x = 8,398,326.14
  5. Step 5: Solve for x
    x = 8,398,326.14/2,802.03
  6. Step 6: Final answer
    x = 2,997.23

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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.