Home / 7,020.18-10,523.76-2,640.54

Finding the Fourth Proportional to 7,020.18, 10,523.76 and 2,640.54

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Solution

The fourth proportional to 7,020.18, 10,523.76 and 2,640.54 is: 3,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.18 : 10,523.76 = 2,640.54 : x
  2. Step 2: Convert to fraction form
    7,020.18/10,523.76 = 2,640.54/x
  3. Step 3: Cross multiply
    7,020.18x = 10,523.76 × 2,640.54
  4. Step 4: Simplify right side
    7,020.18x = 27,788,409.23
  5. Step 5: Solve for x
    x = 27,788,409.23/7,020.18
  6. Step 6: Final answer
    x = 3,958.36

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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.