Home / 2,214.50-3,056.02-1,219.78

Finding the Fourth Proportional to 2,214.50, 3,056.02 and 1,219.78

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Solution

The fourth proportional to 2,214.50, 3,056.02 and 1,219.78 is: 1,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.50 : 3,056.02 = 1,219.78 : x
  2. Step 2: Convert to fraction form
    2,214.50/3,056.02 = 1,219.78/x
  3. Step 3: Cross multiply
    2,214.50x = 3,056.02 × 1,219.78
  4. Step 4: Simplify right side
    2,214.50x = 3,727,670.56
  5. Step 5: Solve for x
    x = 3,727,670.56/2,214.50
  6. Step 6: Final answer
    x = 1,683.30

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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.