Home / 3,401.75-4,694.27-1,985.46

Finding the Fourth Proportional to 3,401.75, 4,694.27 and 1,985.46

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Solution

The fourth proportional to 3,401.75, 4,694.27 and 1,985.46 is: 2,739.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.75 : 4,694.27 = 1,985.46 : x
  2. Step 2: Convert to fraction form
    3,401.75/4,694.27 = 1,985.46/x
  3. Step 3: Cross multiply
    3,401.75x = 4,694.27 × 1,985.46
  4. Step 4: Simplify right side
    3,401.75x = 9,320,275.39
  5. Step 5: Solve for x
    x = 9,320,275.39/3,401.75
  6. Step 6: Final answer
    x = 2,739.85

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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.