Home / 7,345.92-11,020.60-2,415.54

Finding the Fourth Proportional to 7,345.92, 11,020.60 and 2,415.54

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Solution

The fourth proportional to 7,345.92, 11,020.60 and 2,415.54 is: 3,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.92 : 11,020.60 = 2,415.54 : x
  2. Step 2: Convert to fraction form
    7,345.92/11,020.60 = 2,415.54/x
  3. Step 3: Cross multiply
    7,345.92x = 11,020.60 × 2,415.54
  4. Step 4: Simplify right side
    7,345.92x = 26,620,700.12
  5. Step 5: Solve for x
    x = 26,620,700.12/7,345.92
  6. Step 6: Final answer
    x = 3,623.88

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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.