Home / 5,426.31-8,118.90-3,281.22

Finding the Fourth Proportional to 5,426.31, 8,118.90 and 3,281.22

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Solution

The fourth proportional to 5,426.31, 8,118.90 and 3,281.22 is: 4,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.31 : 8,118.90 = 3,281.22 : x
  2. Step 2: Convert to fraction form
    5,426.31/8,118.90 = 3,281.22/x
  3. Step 3: Cross multiply
    5,426.31x = 8,118.90 × 3,281.22
  4. Step 4: Simplify right side
    5,426.31x = 26,639,897.06
  5. Step 5: Solve for x
    x = 26,639,897.06/5,426.31
  6. Step 6: Final answer
    x = 4,909.39

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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.