Home / 3,901.16-5,851.75-1,128.06

Finding the Fourth Proportional to 3,901.16, 5,851.75 and 1,128.06

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Solution

The fourth proportional to 3,901.16, 5,851.75 and 1,128.06 is: 1,692.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.16 : 5,851.75 = 1,128.06 : x
  2. Step 2: Convert to fraction form
    3,901.16/5,851.75 = 1,128.06/x
  3. Step 3: Cross multiply
    3,901.16x = 5,851.75 × 1,128.06
  4. Step 4: Simplify right side
    3,901.16x = 6,601,093.03
  5. Step 5: Solve for x
    x = 6,601,093.03/3,901.16
  6. Step 6: Final answer
    x = 1,692.09

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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.