Home / 2,214.80-3,055.92-1,283.12

Finding the Fourth Proportional to 2,214.80, 3,055.92 and 1,283.12

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Solution

The fourth proportional to 2,214.80, 3,055.92 and 1,283.12 is: 1,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.80 : 3,055.92 = 1,283.12 : x
  2. Step 2: Convert to fraction form
    2,214.80/3,055.92 = 1,283.12/x
  3. Step 3: Cross multiply
    2,214.80x = 3,055.92 × 1,283.12
  4. Step 4: Simplify right side
    2,214.80x = 3,921,112.07
  5. Step 5: Solve for x
    x = 3,921,112.07/2,214.80
  6. Step 6: Final answer
    x = 1,770.41

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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.