Home / 2,214.38-3,055.88-1,219.76

Finding the Fourth Proportional to 2,214.38, 3,055.88 and 1,219.76

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Solution

The fourth proportional to 2,214.38, 3,055.88 and 1,219.76 is: 1,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.38 : 3,055.88 = 1,219.76 : x
  2. Step 2: Convert to fraction form
    2,214.38/3,055.88 = 1,219.76/x
  3. Step 3: Cross multiply
    2,214.38x = 3,055.88 × 1,219.76
  4. Step 4: Simplify right side
    2,214.38x = 3,727,440.19
  5. Step 5: Solve for x
    x = 3,727,440.19/2,214.38
  6. Step 6: Final answer
    x = 1,683.29

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1.5x scale

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.