Home / 5,428.67-8,130.24-2,646.62

Finding the Fourth Proportional to 5,428.67, 8,130.24 and 2,646.62

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Solution

The fourth proportional to 5,428.67, 8,130.24 and 2,646.62 is: 3,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.67 : 8,130.24 = 2,646.62 : x
  2. Step 2: Convert to fraction form
    5,428.67/8,130.24 = 2,646.62/x
  3. Step 3: Cross multiply
    5,428.67x = 8,130.24 × 2,646.62
  4. Step 4: Simplify right side
    5,428.67x = 21,517,676.11
  5. Step 5: Solve for x
    x = 21,517,676.11/5,428.67
  6. Step 6: Final answer
    x = 3,963.71

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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.