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Finding the Fourth Proportional to 4,565.78, 6,848.73 and 1,279.13

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Solution

The fourth proportional to 4,565.78, 6,848.73 and 1,279.13 is: 1,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,565.78 : 6,848.73 = 1,279.13 : x
  2. Step 2: Convert to fraction form
    4,565.78/6,848.73 = 1,279.13/x
  3. Step 3: Cross multiply
    4,565.78x = 6,848.73 × 1,279.13
  4. Step 4: Simplify right side
    4,565.78x = 8,760,416.00
  5. Step 5: Solve for x
    x = 8,760,416.00/4,565.78
  6. Step 6: Final answer
    x = 1,918.71

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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.