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Finding the Fourth Proportional to 7,956.22, 10,978.29 and 4,419.34

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Solution

The fourth proportional to 7,956.22, 10,978.29 and 4,419.34 is: 6,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.22 : 10,978.29 = 4,419.34 : x
  2. Step 2: Convert to fraction form
    7,956.22/10,978.29 = 4,419.34/x
  3. Step 3: Cross multiply
    7,956.22x = 10,978.29 × 4,419.34
  4. Step 4: Simplify right side
    7,956.22x = 48,516,796.13
  5. Step 5: Solve for x
    x = 48,516,796.13/7,956.22
  6. Step 6: Final answer
    x = 6,097.97

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1.5x scale

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.