Home / 5,505.87-8,258.78-1,345.89

Finding the Fourth Proportional to 5,505.87, 8,258.78 and 1,345.89

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Solution

The fourth proportional to 5,505.87, 8,258.78 and 1,345.89 is: 2,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.87 : 8,258.78 = 1,345.89 : x
  2. Step 2: Convert to fraction form
    5,505.87/8,258.78 = 1,345.89/x
  3. Step 3: Cross multiply
    5,505.87x = 8,258.78 × 1,345.89
  4. Step 4: Simplify right side
    5,505.87x = 11,115,433.66
  5. Step 5: Solve for x
    x = 11,115,433.66/5,505.87
  6. Step 6: Final answer
    x = 2,018.83

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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.