Home / 2,211.10-3,317.19-1,237.89

Finding the Fourth Proportional to 2,211.10, 3,317.19 and 1,237.89

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Solution

The fourth proportional to 2,211.10, 3,317.19 and 1,237.89 is: 1,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.10 : 3,317.19 = 1,237.89 : x
  2. Step 2: Convert to fraction form
    2,211.10/3,317.19 = 1,237.89/x
  3. Step 3: Cross multiply
    2,211.10x = 3,317.19 × 1,237.89
  4. Step 4: Simplify right side
    2,211.10x = 4,106,316.33
  5. Step 5: Solve for x
    x = 4,106,316.33/2,211.10
  6. Step 6: Final answer
    x = 1,857.14

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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.