Home / 2,788.62-3,848.37-1,609.75

Finding the Fourth Proportional to 2,788.62, 3,848.37 and 1,609.75

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Solution

The fourth proportional to 2,788.62, 3,848.37 and 1,609.75 is: 2,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.62 : 3,848.37 = 1,609.75 : x
  2. Step 2: Convert to fraction form
    2,788.62/3,848.37 = 1,609.75/x
  3. Step 3: Cross multiply
    2,788.62x = 3,848.37 × 1,609.75
  4. Step 4: Simplify right side
    2,788.62x = 6,194,913.61
  5. Step 5: Solve for x
    x = 6,194,913.61/2,788.62
  6. Step 6: Final answer
    x = 2,221.50

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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.