Home / 2,773.38-4,156.48-1,128.03

Finding the Fourth Proportional to 2,773.38, 4,156.48 and 1,128.03

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Solution

The fourth proportional to 2,773.38, 4,156.48 and 1,128.03 is: 1,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.38 : 4,156.48 = 1,128.03 : x
  2. Step 2: Convert to fraction form
    2,773.38/4,156.48 = 1,128.03/x
  3. Step 3: Cross multiply
    2,773.38x = 4,156.48 × 1,128.03
  4. Step 4: Simplify right side
    2,773.38x = 4,688,634.13
  5. Step 5: Solve for x
    x = 4,688,634.13/2,773.38
  6. Step 6: Final answer
    x = 1,690.58

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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.