Home / 3,081.51-4,622.40-2,862.81

Finding the Fourth Proportional to 3,081.51, 4,622.40 and 2,862.81

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Solution

The fourth proportional to 3,081.51, 4,622.40 and 2,862.81 is: 4,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.51 : 4,622.40 = 2,862.81 : x
  2. Step 2: Convert to fraction form
    3,081.51/4,622.40 = 2,862.81/x
  3. Step 3: Cross multiply
    3,081.51x = 4,622.40 × 2,862.81
  4. Step 4: Simplify right side
    3,081.51x = 13,233,052.94
  5. Step 5: Solve for x
    x = 13,233,052.94/3,081.51
  6. Step 6: Final answer
    x = 4,294.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.