Home / 5,123.79-7,675.96-2,654.91

Finding the Fourth Proportional to 5,123.79, 7,675.96 and 2,654.91

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Solution

The fourth proportional to 5,123.79, 7,675.96 and 2,654.91 is: 3,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.79 : 7,675.96 = 2,654.91 : x
  2. Step 2: Convert to fraction form
    5,123.79/7,675.96 = 2,654.91/x
  3. Step 3: Cross multiply
    5,123.79x = 7,675.96 × 2,654.91
  4. Step 4: Simplify right side
    5,123.79x = 20,378,982.96
  5. Step 5: Solve for x
    x = 20,378,982.96/5,123.79
  6. Step 6: Final answer
    x = 3,977.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.