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Finding the Fourth Proportional to 3,418.75, 4,718.25 and 1,927.03

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Solution

The fourth proportional to 3,418.75, 4,718.25 and 1,927.03 is: 2,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.75 : 4,718.25 = 1,927.03 : x
  2. Step 2: Convert to fraction form
    3,418.75/4,718.25 = 1,927.03/x
  3. Step 3: Cross multiply
    3,418.75x = 4,718.25 × 1,927.03
  4. Step 4: Simplify right side
    3,418.75x = 9,092,209.30
  5. Step 5: Solve for x
    x = 9,092,209.30/3,418.75
  6. Step 6: Final answer
    x = 2,659.51

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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.