Home / 5,896.60-8,140.67-3,909.85

Finding the Fourth Proportional to 5,896.60, 8,140.67 and 3,909.85

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Solution

The fourth proportional to 5,896.60, 8,140.67 and 3,909.85 is: 5,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,896.60 : 8,140.67 = 3,909.85 : x
  2. Step 2: Convert to fraction form
    5,896.60/8,140.67 = 3,909.85/x
  3. Step 3: Cross multiply
    5,896.60x = 8,140.67 × 3,909.85
  4. Step 4: Simplify right side
    5,896.60x = 31,828,798.60
  5. Step 5: Solve for x
    x = 31,828,798.60/5,896.60
  6. Step 6: Final answer
    x = 5,397.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.