Home / 3,939.57-5,909.09-1,017.77

Finding the Fourth Proportional to 3,939.57, 5,909.09 and 1,017.77

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Solution

The fourth proportional to 3,939.57, 5,909.09 and 1,017.77 is: 1,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.57 : 5,909.09 = 1,017.77 : x
  2. Step 2: Convert to fraction form
    3,939.57/5,909.09 = 1,017.77/x
  3. Step 3: Cross multiply
    3,939.57x = 5,909.09 × 1,017.77
  4. Step 4: Simplify right side
    3,939.57x = 6,014,059.90
  5. Step 5: Solve for x
    x = 6,014,059.90/3,939.57
  6. Step 6: Final answer
    x = 1,526.58

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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.