Home / 2,558.89-3,838.33-2,211.17

Finding the Fourth Proportional to 2,558.89, 3,838.33 and 2,211.17

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Solution

The fourth proportional to 2,558.89, 3,838.33 and 2,211.17 is: 3,316.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.89 : 3,838.33 = 2,211.17 : x
  2. Step 2: Convert to fraction form
    2,558.89/3,838.33 = 2,211.17/x
  3. Step 3: Cross multiply
    2,558.89x = 3,838.33 × 2,211.17
  4. Step 4: Simplify right side
    2,558.89x = 8,487,184.29
  5. Step 5: Solve for x
    x = 8,487,184.29/2,558.89
  6. Step 6: Final answer
    x = 3,316.74

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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.