Home / 2,214.12-3,055.55-1,219.46

Finding the Fourth Proportional to 2,214.12, 3,055.55 and 1,219.46

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Solution

The fourth proportional to 2,214.12, 3,055.55 and 1,219.46 is: 1,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.12 : 3,055.55 = 1,219.46 : x
  2. Step 2: Convert to fraction form
    2,214.12/3,055.55 = 1,219.46/x
  3. Step 3: Cross multiply
    2,214.12x = 3,055.55 × 1,219.46
  4. Step 4: Simplify right side
    2,214.12x = 3,726,121.00
  5. Step 5: Solve for x
    x = 3,726,121.00/2,214.12
  6. Step 6: Final answer
    x = 1,682.89

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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.