Home / 2,011.10-2,775.26-1,126.88

Finding the Fourth Proportional to 2,011.10, 2,775.26 and 1,126.88

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Solution

The fourth proportional to 2,011.10, 2,775.26 and 1,126.88 is: 1,555.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.10 : 2,775.26 = 1,126.88 : x
  2. Step 2: Convert to fraction form
    2,011.10/2,775.26 = 1,126.88/x
  3. Step 3: Cross multiply
    2,011.10x = 2,775.26 × 1,126.88
  4. Step 4: Simplify right side
    2,011.10x = 3,127,384.99
  5. Step 5: Solve for x
    x = 3,127,384.99/2,011.10
  6. Step 6: Final answer
    x = 1,555.06

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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.