Home / 5,426.96-8,125.40-2,788.79

Finding the Fourth Proportional to 5,426.96, 8,125.40 and 2,788.79

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Solution

The fourth proportional to 5,426.96, 8,125.40 and 2,788.79 is: 4,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.96 : 8,125.40 = 2,788.79 : x
  2. Step 2: Convert to fraction form
    5,426.96/8,125.40 = 2,788.79/x
  3. Step 3: Cross multiply
    5,426.96x = 8,125.40 × 2,788.79
  4. Step 4: Simplify right side
    5,426.96x = 22,659,979.70
  5. Step 5: Solve for x
    x = 22,659,979.70/5,426.96
  6. Step 6: Final answer
    x = 4,175.45

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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.