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Finding the Fourth Proportional to 6,362.06, 8,779.65 and 3,878.06

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Solution

The fourth proportional to 6,362.06, 8,779.65 and 3,878.06 is: 5,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362.06 : 8,779.65 = 3,878.06 : x
  2. Step 2: Convert to fraction form
    6,362.06/8,779.65 = 3,878.06/x
  3. Step 3: Cross multiply
    6,362.06x = 8,779.65 × 3,878.06
  4. Step 4: Simplify right side
    6,362.06x = 34,048,031.43
  5. Step 5: Solve for x
    x = 34,048,031.43/6,362.06
  6. Step 6: Final answer
    x = 5,351.73

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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.