Home / 2,277.77-3,143.29-1,283.15

Finding the Fourth Proportional to 2,277.77, 3,143.29 and 1,283.15

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Solution

The fourth proportional to 2,277.77, 3,143.29 and 1,283.15 is: 1,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.77 : 3,143.29 = 1,283.15 : x
  2. Step 2: Convert to fraction form
    2,277.77/3,143.29 = 1,283.15/x
  3. Step 3: Cross multiply
    2,277.77x = 3,143.29 × 1,283.15
  4. Step 4: Simplify right side
    2,277.77x = 4,033,290.43
  5. Step 5: Solve for x
    x = 4,033,290.43/2,277.77
  6. Step 6: Final answer
    x = 1,770.72

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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.