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Finding the Fourth Proportional to 6,486.58, 8,951.49 and 3,835.30

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Solution

The fourth proportional to 6,486.58, 8,951.49 and 3,835.30 is: 5,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.58 : 8,951.49 = 3,835.30 : x
  2. Step 2: Convert to fraction form
    6,486.58/8,951.49 = 3,835.30/x
  3. Step 3: Cross multiply
    6,486.58x = 8,951.49 × 3,835.30
  4. Step 4: Simplify right side
    6,486.58x = 34,331,649.60
  5. Step 5: Solve for x
    x = 34,331,649.60/6,486.58
  6. Step 6: Final answer
    x = 5,292.72

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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.