Home / 1,905.38-2,857.02-1,028.93

Finding the Fourth Proportional to 1,905.38, 2,857.02 and 1,028.93

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Solution

The fourth proportional to 1,905.38, 2,857.02 and 1,028.93 is: 1,542.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.38 : 2,857.02 = 1,028.93 : x
  2. Step 2: Convert to fraction form
    1,905.38/2,857.02 = 1,028.93/x
  3. Step 3: Cross multiply
    1,905.38x = 2,857.02 × 1,028.93
  4. Step 4: Simplify right side
    1,905.38x = 2,939,659.30
  5. Step 5: Solve for x
    x = 2,939,659.30/1,905.38
  6. Step 6: Final answer
    x = 1,542.82

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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.