Home / 2,011.44-2,775.78-1,127.31

Finding the Fourth Proportional to 2,011.44, 2,775.78 and 1,127.31

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Solution

The fourth proportional to 2,011.44, 2,775.78 and 1,127.31 is: 1,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.44 : 2,775.78 = 1,127.31 : x
  2. Step 2: Convert to fraction form
    2,011.44/2,775.78 = 1,127.31/x
  3. Step 3: Cross multiply
    2,011.44x = 2,775.78 × 1,127.31
  4. Step 4: Simplify right side
    2,011.44x = 3,129,164.55
  5. Step 5: Solve for x
    x = 3,129,164.55/2,011.44
  6. Step 6: Final answer
    x = 1,555.68

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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.