Home / 2,760.39-4,138.16-1,116.63

Finding the Fourth Proportional to 2,760.39, 4,138.16 and 1,116.63

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Solution

The fourth proportional to 2,760.39, 4,138.16 and 1,116.63 is: 1,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.39 : 4,138.16 = 1,116.63 : x
  2. Step 2: Convert to fraction form
    2,760.39/4,138.16 = 1,116.63/x
  3. Step 3: Cross multiply
    2,760.39x = 4,138.16 × 1,116.63
  4. Step 4: Simplify right side
    2,760.39x = 4,620,788.02
  5. Step 5: Solve for x
    x = 4,620,788.02/2,760.39
  6. Step 6: Final answer
    x = 1,673.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.