Home / 3,127.97-4,317.44-1,801.89

Finding the Fourth Proportional to 3,127.97, 4,317.44 and 1,801.89

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Solution

The fourth proportional to 3,127.97, 4,317.44 and 1,801.89 is: 2,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.97 : 4,317.44 = 1,801.89 : x
  2. Step 2: Convert to fraction form
    3,127.97/4,317.44 = 1,801.89/x
  3. Step 3: Cross multiply
    3,127.97x = 4,317.44 × 1,801.89
  4. Step 4: Simplify right side
    3,127.97x = 7,779,542.95
  5. Step 5: Solve for x
    x = 7,779,542.95/3,127.97
  6. Step 6: Final answer
    x = 2,487.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.