Home / 2,001.30-2,761.72-1,105.03

Finding the Fourth Proportional to 2,001.30, 2,761.72 and 1,105.03

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Solution

The fourth proportional to 2,001.30, 2,761.72 and 1,105.03 is: 1,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.30 : 2,761.72 = 1,105.03 : x
  2. Step 2: Convert to fraction form
    2,001.30/2,761.72 = 1,105.03/x
  3. Step 3: Cross multiply
    2,001.30x = 2,761.72 × 1,105.03
  4. Step 4: Simplify right side
    2,001.30x = 3,051,783.45
  5. Step 5: Solve for x
    x = 3,051,783.45/2,001.30
  6. Step 6: Final answer
    x = 1,524.90

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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.