Home / 2,788.36-3,848.90-1,609.90

Finding the Fourth Proportional to 2,788.36, 3,848.90 and 1,609.90

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Solution

The fourth proportional to 2,788.36, 3,848.90 and 1,609.90 is: 2,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.36 : 3,848.90 = 1,609.90 : x
  2. Step 2: Convert to fraction form
    2,788.36/3,848.90 = 1,609.90/x
  3. Step 3: Cross multiply
    2,788.36x = 3,848.90 × 1,609.90
  4. Step 4: Simplify right side
    2,788.36x = 6,196,344.11
  5. Step 5: Solve for x
    x = 6,196,344.11/2,788.36
  6. Step 6: Final answer
    x = 2,222.22

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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.