Home / 2,011.27-2,775.56-1,127.09

Finding the Fourth Proportional to 2,011.27, 2,775.56 and 1,127.09

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Solution

The fourth proportional to 2,011.27, 2,775.56 and 1,127.09 is: 1,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.27 : 2,775.56 = 1,127.09 : x
  2. Step 2: Convert to fraction form
    2,011.27/2,775.56 = 1,127.09/x
  3. Step 3: Cross multiply
    2,011.27x = 2,775.56 × 1,127.09
  4. Step 4: Simplify right side
    2,011.27x = 3,128,286.41
  5. Step 5: Solve for x
    x = 3,128,286.41/2,011.27
  6. Step 6: Final answer
    x = 1,555.38

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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.