Home / 2,012.13-2,776.68-1,127.95

Finding the Fourth Proportional to 2,012.13, 2,776.68 and 1,127.95

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Solution

The fourth proportional to 2,012.13, 2,776.68 and 1,127.95 is: 1,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.13 : 2,776.68 = 1,127.95 : x
  2. Step 2: Convert to fraction form
    2,012.13/2,776.68 = 1,127.95/x
  3. Step 3: Cross multiply
    2,012.13x = 2,776.68 × 1,127.95
  4. Step 4: Simplify right side
    2,012.13x = 3,131,949.26
  5. Step 5: Solve for x
    x = 3,131,949.26/2,012.13
  6. Step 6: Final answer
    x = 1,556.53

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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.