Home / 2,214.65-3,317.72-1,237.79

Finding the Fourth Proportional to 2,214.65, 3,317.72 and 1,237.79

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Solution

The fourth proportional to 2,214.65, 3,317.72 and 1,237.79 is: 1,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.65 : 3,317.72 = 1,237.79 : x
  2. Step 2: Convert to fraction form
    2,214.65/3,317.72 = 1,237.79/x
  3. Step 3: Cross multiply
    2,214.65x = 3,317.72 × 1,237.79
  4. Step 4: Simplify right side
    2,214.65x = 4,106,640.64
  5. Step 5: Solve for x
    x = 4,106,640.64/2,214.65
  6. Step 6: Final answer
    x = 1,854.31

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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.