Home / 2,214.24-3,055.76-1,219.65

Finding the Fourth Proportional to 2,214.24, 3,055.76 and 1,219.65

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Solution

The fourth proportional to 2,214.24, 3,055.76 and 1,219.65 is: 1,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.24 : 3,055.76 = 1,219.65 : x
  2. Step 2: Convert to fraction form
    2,214.24/3,055.76 = 1,219.65/x
  3. Step 3: Cross multiply
    2,214.24x = 3,055.76 × 1,219.65
  4. Step 4: Simplify right side
    2,214.24x = 3,726,957.68
  5. Step 5: Solve for x
    x = 3,726,957.68/2,214.24
  6. Step 6: Final answer
    x = 1,683.18

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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.