Home / 2,214.06-3,055.40-1,219.40

Finding the Fourth Proportional to 2,214.06, 3,055.40 and 1,219.40

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Solution

The fourth proportional to 2,214.06, 3,055.40 and 1,219.40 is: 1,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.06 : 3,055.40 = 1,219.40 : x
  2. Step 2: Convert to fraction form
    2,214.06/3,055.40 = 1,219.40/x
  3. Step 3: Cross multiply
    2,214.06x = 3,055.40 × 1,219.40
  4. Step 4: Simplify right side
    2,214.06x = 3,725,763.17
  5. Step 5: Solve for x
    x = 3,725,763.17/2,214.06
  6. Step 6: Final answer
    x = 1,682.77

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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.