Home / 3,821.10-5,269.50-2,560.74

Finding the Fourth Proportional to 3,821.10, 5,269.50 and 2,560.74

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Solution

The fourth proportional to 3,821.10, 5,269.50 and 2,560.74 is: 3,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.10 : 5,269.50 = 2,560.74 : x
  2. Step 2: Convert to fraction form
    3,821.10/5,269.50 = 2,560.74/x
  3. Step 3: Cross multiply
    3,821.10x = 5,269.50 × 2,560.74
  4. Step 4: Simplify right side
    3,821.10x = 13,493,819.43
  5. Step 5: Solve for x
    x = 13,493,819.43/3,821.10
  6. Step 6: Final answer
    x = 3,531.40

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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.