Home / 5,431.05-8,132.00-2,828.52

Finding the Fourth Proportional to 5,431.05, 8,132.00 and 2,828.52

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Solution

The fourth proportional to 5,431.05, 8,132.00 and 2,828.52 is: 4,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.05 : 8,132.00 = 2,828.52 : x
  2. Step 2: Convert to fraction form
    5,431.05/8,132.00 = 2,828.52/x
  3. Step 3: Cross multiply
    5,431.05x = 8,132.00 × 2,828.52
  4. Step 4: Simplify right side
    5,431.05x = 23,001,510.50
  5. Step 5: Solve for x
    x = 23,001,510.50/5,431.05
  6. Step 6: Final answer
    x = 4,235.19

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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.