Home / 5,426.12-8,131.80-2,823.68

Finding the Fourth Proportional to 5,426.12, 8,131.80 and 2,823.68

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Solution

The fourth proportional to 5,426.12, 8,131.80 and 2,823.68 is: 4,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.12 : 8,131.80 = 2,823.68 : x
  2. Step 2: Convert to fraction form
    5,426.12/8,131.80 = 2,823.68/x
  3. Step 3: Cross multiply
    5,426.12x = 8,131.80 × 2,823.68
  4. Step 4: Simplify right side
    5,426.12x = 22,961,601.02
  5. Step 5: Solve for x
    x = 22,961,601.02/5,426.12
  6. Step 6: Final answer
    x = 4,231.68

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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.