Home / 3,638.02-5,455.05-1,297.66

Finding the Fourth Proportional to 3,638.02, 5,455.05 and 1,297.66

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Solution

The fourth proportional to 3,638.02, 5,455.05 and 1,297.66 is: 1,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.02 : 5,455.05 = 1,297.66 : x
  2. Step 2: Convert to fraction form
    3,638.02/5,455.05 = 1,297.66/x
  3. Step 3: Cross multiply
    3,638.02x = 5,455.05 × 1,297.66
  4. Step 4: Simplify right side
    3,638.02x = 7,078,800.18
  5. Step 5: Solve for x
    x = 7,078,800.18/3,638.02
  6. Step 6: Final answer
    x = 1,945.78

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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.