Home / 7,921.87-10,930.01-5,370.86

Finding the Fourth Proportional to 7,921.87, 10,930.01 and 5,370.86

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Solution

The fourth proportional to 7,921.87, 10,930.01 and 5,370.86 is: 7,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.87 : 10,930.01 = 5,370.86 : x
  2. Step 2: Convert to fraction form
    7,921.87/10,930.01 = 5,370.86/x
  3. Step 3: Cross multiply
    7,921.87x = 10,930.01 × 5,370.86
  4. Step 4: Simplify right side
    7,921.87x = 58,703,553.98
  5. Step 5: Solve for x
    x = 58,703,553.98/7,921.87
  6. Step 6: Final answer
    x = 7,410.32

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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.