Home / 2,788.84-3,848.35-1,609.69

Finding the Fourth Proportional to 2,788.84, 3,848.35 and 1,609.69

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Solution

The fourth proportional to 2,788.84, 3,848.35 and 1,609.69 is: 2,221.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.84 : 3,848.35 = 1,609.69 : x
  2. Step 2: Convert to fraction form
    2,788.84/3,848.35 = 1,609.69/x
  3. Step 3: Cross multiply
    2,788.84x = 3,848.35 × 1,609.69
  4. Step 4: Simplify right side
    2,788.84x = 6,194,650.51
  5. Step 5: Solve for x
    x = 6,194,650.51/2,788.84
  6. Step 6: Final answer
    x = 2,221.23

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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.