Home / 8,191.81-12,280.56-2,926

Finding the Fourth Proportional to 8,191.81, 12,280.56 and 2,926

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Solution

The fourth proportional to 8,191.81, 12,280.56 and 2,926 is: 4,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.81 : 12,280.56 = 2,926 : x
  2. Step 2: Convert to fraction form
    8,191.81/12,280.56 = 2,926/x
  3. Step 3: Cross multiply
    8,191.81x = 12,280.56 × 2,926
  4. Step 4: Simplify right side
    8,191.81x = 35,932,918.56
  5. Step 5: Solve for x
    x = 35,932,918.56/8,191.81
  6. Step 6: Final answer
    x = 4,386.44

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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.