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Finding the Fourth Proportional to 6,618.96, 9,134.64 and 3,826.08

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Solution

The fourth proportional to 6,618.96, 9,134.64 and 3,826.08 is: 5,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.96 : 9,134.64 = 3,826.08 : x
  2. Step 2: Convert to fraction form
    6,618.96/9,134.64 = 3,826.08/x
  3. Step 3: Cross multiply
    6,618.96x = 9,134.64 × 3,826.08
  4. Step 4: Simplify right side
    6,618.96x = 34,949,863.41
  5. Step 5: Solve for x
    x = 34,949,863.41/6,618.96
  6. Step 6: Final answer
    x = 5,280.27

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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.