Home / 4,391.88-6,587.68-1,271.96

Finding the Fourth Proportional to 4,391.88, 6,587.68 and 1,271.96

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Solution

The fourth proportional to 4,391.88, 6,587.68 and 1,271.96 is: 1,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.88 : 6,587.68 = 1,271.96 : x
  2. Step 2: Convert to fraction form
    4,391.88/6,587.68 = 1,271.96/x
  3. Step 3: Cross multiply
    4,391.88x = 6,587.68 × 1,271.96
  4. Step 4: Simplify right side
    4,391.88x = 8,379,265.45
  5. Step 5: Solve for x
    x = 8,379,265.45/4,391.88
  6. Step 6: Final answer
    x = 1,907.90

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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.