Home / 5,428.87-8,142.36-2,506.93

Finding the Fourth Proportional to 5,428.87, 8,142.36 and 2,506.93

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Solution

The fourth proportional to 5,428.87, 8,142.36 and 2,506.93 is: 3,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.87 : 8,142.36 = 2,506.93 : x
  2. Step 2: Convert to fraction form
    5,428.87/8,142.36 = 2,506.93/x
  3. Step 3: Cross multiply
    5,428.87x = 8,142.36 × 2,506.93
  4. Step 4: Simplify right side
    5,428.87x = 20,412,326.55
  5. Step 5: Solve for x
    x = 20,412,326.55/5,428.87
  6. Step 6: Final answer
    x = 3,759.96

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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.