Home / 2,788.52-3,846.60-1,778.32

Finding the Fourth Proportional to 2,788.52, 3,846.60 and 1,778.32

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Solution

The fourth proportional to 2,788.52, 3,846.60 and 1,778.32 is: 2,453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.52 : 3,846.60 = 1,778.32 : x
  2. Step 2: Convert to fraction form
    2,788.52/3,846.60 = 1,778.32/x
  3. Step 3: Cross multiply
    2,788.52x = 3,846.60 × 1,778.32
  4. Step 4: Simplify right side
    2,788.52x = 6,840,485.71
  5. Step 5: Solve for x
    x = 6,840,485.71/2,788.52
  6. Step 6: Final answer
    x = 2,453.09

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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.