Home / 7,956.32-10,979.20-4,972

Finding the Fourth Proportional to 7,956.32, 10,979.20 and 4,972

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Solution

The fourth proportional to 7,956.32, 10,979.20 and 4,972 is: 6,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.32 : 10,979.20 = 4,972 : x
  2. Step 2: Convert to fraction form
    7,956.32/10,979.20 = 4,972/x
  3. Step 3: Cross multiply
    7,956.32x = 10,979.20 × 4,972
  4. Step 4: Simplify right side
    7,956.32x = 54,588,582.40
  5. Step 5: Solve for x
    x = 54,588,582.40/7,956.32
  6. Step 6: Final answer
    x = 6,861.03

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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.