Home / 2,103.06-3,155.19-804.63

Finding the Fourth Proportional to 2,103.06, 3,155.19 and 804.63

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Solution

The fourth proportional to 2,103.06, 3,155.19 and 804.63 is: 1,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.06 : 3,155.19 = 804.63 : x
  2. Step 2: Convert to fraction form
    2,103.06/3,155.19 = 804.63/x
  3. Step 3: Cross multiply
    2,103.06x = 3,155.19 × 804.63
  4. Step 4: Simplify right side
    2,103.06x = 2,538,760.53
  5. Step 5: Solve for x
    x = 2,538,760.53/2,103.06
  6. Step 6: Final answer
    x = 1,207.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.