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Finding the Fourth Proportional to 6,658.24, 9,985.74 and 4,189.36

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Solution

The fourth proportional to 6,658.24, 9,985.74 and 4,189.36 is: 6,283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.24 : 9,985.74 = 4,189.36 : x
  2. Step 2: Convert to fraction form
    6,658.24/9,985.74 = 4,189.36/x
  3. Step 3: Cross multiply
    6,658.24x = 9,985.74 × 4,189.36
  4. Step 4: Simplify right side
    6,658.24x = 41,833,859.73
  5. Step 5: Solve for x
    x = 41,833,859.73/6,658.24
  6. Step 6: Final answer
    x = 6,283.02

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1.5x scale

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.