Home / 2,546.79-3,815.21-1,210.68

Finding the Fourth Proportional to 2,546.79, 3,815.21 and 1,210.68

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Solution

The fourth proportional to 2,546.79, 3,815.21 and 1,210.68 is: 1,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,546.79 : 3,815.21 = 1,210.68 : x
  2. Step 2: Convert to fraction form
    2,546.79/3,815.21 = 1,210.68/x
  3. Step 3: Cross multiply
    2,546.79x = 3,815.21 × 1,210.68
  4. Step 4: Simplify right side
    2,546.79x = 4,618,998.44
  5. Step 5: Solve for x
    x = 4,618,998.44/2,546.79
  6. Step 6: Final answer
    x = 1,813.66

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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.