Home / 2,640.15-3,644.87-1,757.25

Finding the Fourth Proportional to 2,640.15, 3,644.87 and 1,757.25

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Solution

The fourth proportional to 2,640.15, 3,644.87 and 1,757.25 is: 2,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.15 : 3,644.87 = 1,757.25 : x
  2. Step 2: Convert to fraction form
    2,640.15/3,644.87 = 1,757.25/x
  3. Step 3: Cross multiply
    2,640.15x = 3,644.87 × 1,757.25
  4. Step 4: Simplify right side
    2,640.15x = 6,404,939.02
  5. Step 5: Solve for x
    x = 6,404,939.02/2,640.15
  6. Step 6: Final answer
    x = 2,425.98

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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.