Home / 2,560.21-3,838.89-1,635.19

Finding the Fourth Proportional to 2,560.21, 3,838.89 and 1,635.19

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Solution

The fourth proportional to 2,560.21, 3,838.89 and 1,635.19 is: 2,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.21 : 3,838.89 = 1,635.19 : x
  2. Step 2: Convert to fraction form
    2,560.21/3,838.89 = 1,635.19/x
  3. Step 3: Cross multiply
    2,560.21x = 3,838.89 × 1,635.19
  4. Step 4: Simplify right side
    2,560.21x = 6,277,311.07
  5. Step 5: Solve for x
    x = 6,277,311.07/2,560.21
  6. Step 6: Final answer
    x = 2,451.88

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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.