Home / 5,505.86-8,258.63-1,345.88

Finding the Fourth Proportional to 5,505.86, 8,258.63 and 1,345.88

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Solution

The fourth proportional to 5,505.86, 8,258.63 and 1,345.88 is: 2,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.86 : 8,258.63 = 1,345.88 : x
  2. Step 2: Convert to fraction form
    5,505.86/8,258.63 = 1,345.88/x
  3. Step 3: Cross multiply
    5,505.86x = 8,258.63 × 1,345.88
  4. Step 4: Simplify right side
    5,505.86x = 11,115,138.86
  5. Step 5: Solve for x
    x = 11,115,138.86/5,505.86
  6. Step 6: Final answer
    x = 2,018.78

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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.