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Finding the Fourth Proportional to 6,295.74, 8,689.32 and 3,779.88

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Solution

The fourth proportional to 6,295.74, 8,689.32 and 3,779.88 is: 5,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.74 : 8,689.32 = 3,779.88 : x
  2. Step 2: Convert to fraction form
    6,295.74/8,689.32 = 3,779.88/x
  3. Step 3: Cross multiply
    6,295.74x = 8,689.32 × 3,779.88
  4. Step 4: Simplify right side
    6,295.74x = 32,844,586.88
  5. Step 5: Solve for x
    x = 32,844,586.88/6,295.74
  6. Step 6: Final answer
    x = 5,216.95

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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.