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Finding the Fourth Proportional to 3,334.68, 4,994.22 and 1,687.20

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Solution

The fourth proportional to 3,334.68, 4,994.22 and 1,687.20 is: 2,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.68 : 4,994.22 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    3,334.68/4,994.22 = 1,687.20/x
  3. Step 3: Cross multiply
    3,334.68x = 4,994.22 × 1,687.20
  4. Step 4: Simplify right side
    3,334.68x = 8,426,247.98
  5. Step 5: Solve for x
    x = 8,426,247.98/3,334.68
  6. Step 6: Final answer
    x = 2,526.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.