Home / 2,013.18-2,777.74-1,215.87

Finding the Fourth Proportional to 2,013.18, 2,777.74 and 1,215.87

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Solution

The fourth proportional to 2,013.18, 2,777.74 and 1,215.87 is: 1,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.18 : 2,777.74 = 1,215.87 : x
  2. Step 2: Convert to fraction form
    2,013.18/2,777.74 = 1,215.87/x
  3. Step 3: Cross multiply
    2,013.18x = 2,777.74 × 1,215.87
  4. Step 4: Simplify right side
    2,013.18x = 3,377,370.73
  5. Step 5: Solve for x
    x = 3,377,370.73/2,013.18
  6. Step 6: Final answer
    x = 1,677.63

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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.