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Finding the Fourth Proportional to 5,262.48, 7,890.06 and 2,663.64

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Solution

The fourth proportional to 5,262.48, 7,890.06 and 2,663.64 is: 3,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.48 : 7,890.06 = 2,663.64 : x
  2. Step 2: Convert to fraction form
    5,262.48/7,890.06 = 2,663.64/x
  3. Step 3: Cross multiply
    5,262.48x = 7,890.06 × 2,663.64
  4. Step 4: Simplify right side
    5,262.48x = 21,016,279.42
  5. Step 5: Solve for x
    x = 21,016,279.42/5,262.48
  6. Step 6: Final answer
    x = 3,993.61

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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.