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Finding the Fourth Proportional to 7,956, 10,979.34 and 4,973.59

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Solution

The fourth proportional to 7,956, 10,979.34 and 4,973.59 is: 6,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956 : 10,979.34 = 4,973.59 : x
  2. Step 2: Convert to fraction form
    7,956/10,979.34 = 4,973.59/x
  3. Step 3: Cross multiply
    7,956x = 10,979.34 × 4,973.59
  4. Step 4: Simplify right side
    7,956x = 54,606,708.18
  5. Step 5: Solve for x
    x = 54,606,708.18/7,956
  6. Step 6: Final answer
    x = 6,863.59

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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.