Home / 2,845.75-3,927.17-1,603.75

Finding the Fourth Proportional to 2,845.75, 3,927.17 and 1,603.75

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Solution

The fourth proportional to 2,845.75, 3,927.17 and 1,603.75 is: 2,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.75 : 3,927.17 = 1,603.75 : x
  2. Step 2: Convert to fraction form
    2,845.75/3,927.17 = 1,603.75/x
  3. Step 3: Cross multiply
    2,845.75x = 3,927.17 × 1,603.75
  4. Step 4: Simplify right side
    2,845.75x = 6,298,190.87
  5. Step 5: Solve for x
    x = 6,298,190.87/2,845.75
  6. Step 6: Final answer
    x = 2,213.19

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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.