Home / 2,926-4,035.13-2,181.61

Finding the Fourth Proportional to 2,926, 4,035.13 and 2,181.61

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Solution

The fourth proportional to 2,926, 4,035.13 and 2,181.61 is: 3,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926 : 4,035.13 = 2,181.61 : x
  2. Step 2: Convert to fraction form
    2,926/4,035.13 = 2,181.61/x
  3. Step 3: Cross multiply
    2,926x = 4,035.13 × 2,181.61
  4. Step 4: Simplify right side
    2,926x = 8,803,079.96
  5. Step 5: Solve for x
    x = 8,803,079.96/2,926
  6. Step 6: Final answer
    x = 3,008.57

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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.