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Finding the Fourth Proportional to 6,442.70, 9,663.15 and 2,060.60

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Solution

The fourth proportional to 6,442.70, 9,663.15 and 2,060.60 is: 3,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442.70 : 9,663.15 = 2,060.60 : x
  2. Step 2: Convert to fraction form
    6,442.70/9,663.15 = 2,060.60/x
  3. Step 3: Cross multiply
    6,442.70x = 9,663.15 × 2,060.60
  4. Step 4: Simplify right side
    6,442.70x = 19,911,886.89
  5. Step 5: Solve for x
    x = 19,911,886.89/6,442.70
  6. Step 6: Final answer
    x = 3,090.61

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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.