Home / 2,869.04-3,958.68-1,820.72

Finding the Fourth Proportional to 2,869.04, 3,958.68 and 1,820.72

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Solution

The fourth proportional to 2,869.04, 3,958.68 and 1,820.72 is: 2,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.04 : 3,958.68 = 1,820.72 : x
  2. Step 2: Convert to fraction form
    2,869.04/3,958.68 = 1,820.72/x
  3. Step 3: Cross multiply
    2,869.04x = 3,958.68 × 1,820.72
  4. Step 4: Simplify right side
    2,869.04x = 7,207,647.85
  5. Step 5: Solve for x
    x = 7,207,647.85/2,869.04
  6. Step 6: Final answer
    x = 2,512.22

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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.