Home / 5,325.59-7,989.08-2,857.03

Finding the Fourth Proportional to 5,325.59, 7,989.08 and 2,857.03

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Solution

The fourth proportional to 5,325.59, 7,989.08 and 2,857.03 is: 4,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.59 : 7,989.08 = 2,857.03 : x
  2. Step 2: Convert to fraction form
    5,325.59/7,989.08 = 2,857.03/x
  3. Step 3: Cross multiply
    5,325.59x = 7,989.08 × 2,857.03
  4. Step 4: Simplify right side
    5,325.59x = 22,825,006.97
  5. Step 5: Solve for x
    x = 22,825,006.97/5,325.59
  6. Step 6: Final answer
    x = 4,285.91

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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.