Home / 7,570.23-11,355.39-2,639.85

Finding the Fourth Proportional to 7,570.23, 11,355.39 and 2,639.85

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Solution

The fourth proportional to 7,570.23, 11,355.39 and 2,639.85 is: 3,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.23 : 11,355.39 = 2,639.85 : x
  2. Step 2: Convert to fraction form
    7,570.23/11,355.39 = 2,639.85/x
  3. Step 3: Cross multiply
    7,570.23x = 11,355.39 × 2,639.85
  4. Step 4: Simplify right side
    7,570.23x = 29,976,526.29
  5. Step 5: Solve for x
    x = 29,976,526.29/7,570.23
  6. Step 6: Final answer
    x = 3,959.79

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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.