Home / 8,162.08-12,242.96-2,690.08

Finding the Fourth Proportional to 8,162.08, 12,242.96 and 2,690.08

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Solution

The fourth proportional to 8,162.08, 12,242.96 and 2,690.08 is: 4,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.08 : 12,242.96 = 2,690.08 : x
  2. Step 2: Convert to fraction form
    8,162.08/12,242.96 = 2,690.08/x
  3. Step 3: Cross multiply
    8,162.08x = 12,242.96 × 2,690.08
  4. Step 4: Simplify right side
    8,162.08x = 32,934,541.84
  5. Step 5: Solve for x
    x = 32,934,541.84/8,162.08
  6. Step 6: Final answer
    x = 4,035.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.