Home / 2,211.18-3,316.77-1,237.74

Finding the Fourth Proportional to 2,211.18, 3,316.77 and 1,237.74

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Solution

The fourth proportional to 2,211.18, 3,316.77 and 1,237.74 is: 1,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.18 : 3,316.77 = 1,237.74 : x
  2. Step 2: Convert to fraction form
    2,211.18/3,316.77 = 1,237.74/x
  3. Step 3: Cross multiply
    2,211.18x = 3,316.77 × 1,237.74
  4. Step 4: Simplify right side
    2,211.18x = 4,105,298.90
  5. Step 5: Solve for x
    x = 4,105,298.90/2,211.18
  6. Step 6: Final answer
    x = 1,856.61

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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.