Home / 10,731.20-16,097.70-2,940

Finding the Fourth Proportional to 10,731.20, 16,097.70 and 2,940

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Solution

The fourth proportional to 10,731.20, 16,097.70 and 2,940 is: 4,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,731.20 : 16,097.70 = 2,940 : x
  2. Step 2: Convert to fraction form
    10,731.20/16,097.70 = 2,940/x
  3. Step 3: Cross multiply
    10,731.20x = 16,097.70 × 2,940
  4. Step 4: Simplify right side
    10,731.20x = 47,327,238
  5. Step 5: Solve for x
    x = 47,327,238/10,731.20
  6. Step 6: Final answer
    x = 4,410.25

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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.