Home / 2,788.12-3,847.64-1,546.12

Finding the Fourth Proportional to 2,788.12, 3,847.64 and 1,546.12

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Solution

The fourth proportional to 2,788.12, 3,847.64 and 1,546.12 is: 2,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.12 : 3,847.64 = 1,546.12 : x
  2. Step 2: Convert to fraction form
    2,788.12/3,847.64 = 1,546.12/x
  3. Step 3: Cross multiply
    2,788.12x = 3,847.64 × 1,546.12
  4. Step 4: Simplify right side
    2,788.12x = 5,948,913.16
  5. Step 5: Solve for x
    x = 5,948,913.16/2,788.12
  6. Step 6: Final answer
    x = 2,133.66

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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.