Home / 2,214.91-3,056.54-1,220.28

Finding the Fourth Proportional to 2,214.91, 3,056.54 and 1,220.28

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Solution

The fourth proportional to 2,214.91, 3,056.54 and 1,220.28 is: 1,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.91 : 3,056.54 = 1,220.28 : x
  2. Step 2: Convert to fraction form
    2,214.91/3,056.54 = 1,220.28/x
  3. Step 3: Cross multiply
    2,214.91x = 3,056.54 × 1,220.28
  4. Step 4: Simplify right side
    2,214.91x = 3,729,834.63
  5. Step 5: Solve for x
    x = 3,729,834.63/2,214.91
  6. Step 6: Final answer
    x = 1,683.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.