Home / 2,214.28-3,055.74-1,219.60

Finding the Fourth Proportional to 2,214.28, 3,055.74 and 1,219.60

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Solution

The fourth proportional to 2,214.28, 3,055.74 and 1,219.60 is: 1,683.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.28 : 3,055.74 = 1,219.60 : x
  2. Step 2: Convert to fraction form
    2,214.28/3,055.74 = 1,219.60/x
  3. Step 3: Cross multiply
    2,214.28x = 3,055.74 × 1,219.60
  4. Step 4: Simplify right side
    2,214.28x = 3,726,780.50
  5. Step 5: Solve for x
    x = 3,726,780.50/2,214.28
  6. Step 6: Final answer
    x = 1,683.07

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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.