Home / 2,001.96-2,762.43-1,215.87

Finding the Fourth Proportional to 2,001.96, 2,762.43 and 1,215.87

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Solution

The fourth proportional to 2,001.96, 2,762.43 and 1,215.87 is: 1,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.96 : 2,762.43 = 1,215.87 : x
  2. Step 2: Convert to fraction form
    2,001.96/2,762.43 = 1,215.87/x
  3. Step 3: Cross multiply
    2,001.96x = 2,762.43 × 1,215.87
  4. Step 4: Simplify right side
    2,001.96x = 3,358,755.76
  5. Step 5: Solve for x
    x = 3,358,755.76/2,001.96
  6. Step 6: Final answer
    x = 1,677.73

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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.