Home / 5,251.48-7,878.89-1,553.73

Finding the Fourth Proportional to 5,251.48, 7,878.89 and 1,553.73

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Solution

The fourth proportional to 5,251.48, 7,878.89 and 1,553.73 is: 2,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.48 : 7,878.89 = 1,553.73 : x
  2. Step 2: Convert to fraction form
    5,251.48/7,878.89 = 1,553.73/x
  3. Step 3: Cross multiply
    5,251.48x = 7,878.89 × 1,553.73
  4. Step 4: Simplify right side
    5,251.48x = 12,241,667.76
  5. Step 5: Solve for x
    x = 12,241,667.76/5,251.48
  6. Step 6: Final answer
    x = 2,331.09

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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.