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Finding the Fourth Proportional to 2,036.02, 2,809.85 and 1,139.85

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Solution

The fourth proportional to 2,036.02, 2,809.85 and 1,139.85 is: 1,573.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,036.02 : 2,809.85 = 1,139.85 : x
  2. Step 2: Convert to fraction form
    2,036.02/2,809.85 = 1,139.85/x
  3. Step 3: Cross multiply
    2,036.02x = 2,809.85 × 1,139.85
  4. Step 4: Simplify right side
    2,036.02x = 3,202,791.29
  5. Step 5: Solve for x
    x = 3,202,791.29/2,036.02
  6. Step 6: Final answer
    x = 1,573.06

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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.