Home / 2,214.25-3,055.65-1,219.51

Finding the Fourth Proportional to 2,214.25, 3,055.65 and 1,219.51

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Solution

The fourth proportional to 2,214.25, 3,055.65 and 1,219.51 is: 1,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.25 : 3,055.65 = 1,219.51 : x
  2. Step 2: Convert to fraction form
    2,214.25/3,055.65 = 1,219.51/x
  3. Step 3: Cross multiply
    2,214.25x = 3,055.65 × 1,219.51
  4. Step 4: Simplify right side
    2,214.25x = 3,726,390.89
  5. Step 5: Solve for x
    x = 3,726,390.89/2,214.25
  6. Step 6: Final answer
    x = 1,682.91

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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.