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Finding the Fourth Proportional to 6,362.88, 8,779.75 and 4,127.82

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Solution

The fourth proportional to 6,362.88, 8,779.75 and 4,127.82 is: 5,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362.88 : 8,779.75 = 4,127.82 : x
  2. Step 2: Convert to fraction form
    6,362.88/8,779.75 = 4,127.82/x
  3. Step 3: Cross multiply
    6,362.88x = 8,779.75 × 4,127.82
  4. Step 4: Simplify right side
    6,362.88x = 36,241,227.65
  5. Step 5: Solve for x
    x = 36,241,227.65/6,362.88
  6. Step 6: Final answer
    x = 5,695.73

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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.