Home / 5,426.76-8,143.80-2,651.10

Finding the Fourth Proportional to 5,426.76, 8,143.80 and 2,651.10

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Solution

The fourth proportional to 5,426.76, 8,143.80 and 2,651.10 is: 3,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.76 : 8,143.80 = 2,651.10 : x
  2. Step 2: Convert to fraction form
    5,426.76/8,143.80 = 2,651.10/x
  3. Step 3: Cross multiply
    5,426.76x = 8,143.80 × 2,651.10
  4. Step 4: Simplify right side
    5,426.76x = 21,590,028.18
  5. Step 5: Solve for x
    x = 21,590,028.18/5,426.76
  6. Step 6: Final answer
    x = 3,978.44

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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.