Home / 5,146.82-7,102.60-2,788.96

Finding the Fourth Proportional to 5,146.82, 7,102.60 and 2,788.96

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Solution

The fourth proportional to 5,146.82, 7,102.60 and 2,788.96 is: 3,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.82 : 7,102.60 = 2,788.96 : x
  2. Step 2: Convert to fraction form
    5,146.82/7,102.60 = 2,788.96/x
  3. Step 3: Cross multiply
    5,146.82x = 7,102.60 × 2,788.96
  4. Step 4: Simplify right side
    5,146.82x = 19,808,867.30
  5. Step 5: Solve for x
    x = 19,808,867.30/5,146.82
  6. Step 6: Final answer
    x = 3,848.76

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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.