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Finding the Fourth Proportional to 6,371.50, 8,788.86 and 4,009.54

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Solution

The fourth proportional to 6,371.50, 8,788.86 and 4,009.54 is: 5,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.50 : 8,788.86 = 4,009.54 : x
  2. Step 2: Convert to fraction form
    6,371.50/8,788.86 = 4,009.54/x
  3. Step 3: Cross multiply
    6,371.50x = 8,788.86 × 4,009.54
  4. Step 4: Simplify right side
    6,371.50x = 35,239,285.72
  5. Step 5: Solve for x
    x = 35,239,285.72/6,371.50
  6. Step 6: Final answer
    x = 5,530.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.