Home / 2,611.17-3,913.54-1,377.79

Finding the Fourth Proportional to 2,611.17, 3,913.54 and 1,377.79

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Solution

The fourth proportional to 2,611.17, 3,913.54 and 1,377.79 is: 2,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.17 : 3,913.54 = 1,377.79 : x
  2. Step 2: Convert to fraction form
    2,611.17/3,913.54 = 1,377.79/x
  3. Step 3: Cross multiply
    2,611.17x = 3,913.54 × 1,377.79
  4. Step 4: Simplify right side
    2,611.17x = 5,392,023.05
  5. Step 5: Solve for x
    x = 5,392,023.05/2,611.17
  6. Step 6: Final answer
    x = 2,064.98

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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.