Home / 6,261.44-8,640.76-3,609.32

Finding the Fourth Proportional to 6,261.44, 8,640.76 and 3,609.32

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Solution

The fourth proportional to 6,261.44, 8,640.76 and 3,609.32 is: 4,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.44 : 8,640.76 = 3,609.32 : x
  2. Step 2: Convert to fraction form
    6,261.44/8,640.76 = 3,609.32/x
  3. Step 3: Cross multiply
    6,261.44x = 8,640.76 × 3,609.32
  4. Step 4: Simplify right side
    6,261.44x = 31,187,267.88
  5. Step 5: Solve for x
    x = 31,187,267.88/6,261.44
  6. Step 6: Final answer
    x = 4,980.85

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Half scale
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1.5x scale

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.