Home / 7,570.25-11,355.42-2,639.87

Finding the Fourth Proportional to 7,570.25, 11,355.42 and 2,639.87

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Solution

The fourth proportional to 7,570.25, 11,355.42 and 2,639.87 is: 3,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.25 : 11,355.42 = 2,639.87 : x
  2. Step 2: Convert to fraction form
    7,570.25/11,355.42 = 2,639.87/x
  3. Step 3: Cross multiply
    7,570.25x = 11,355.42 × 2,639.87
  4. Step 4: Simplify right side
    7,570.25x = 29,976,828.30
  5. Step 5: Solve for x
    x = 29,976,828.30/7,570.25
  6. Step 6: Final answer
    x = 3,959.82

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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.