Home / 7,570.74-11,355.80-2,640.36

Finding the Fourth Proportional to 7,570.74, 11,355.80 and 2,640.36

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Solution

The fourth proportional to 7,570.74, 11,355.80 and 2,640.36 is: 3,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.74 : 11,355.80 = 2,640.36 : x
  2. Step 2: Convert to fraction form
    7,570.74/11,355.80 = 2,640.36/x
  3. Step 3: Cross multiply
    7,570.74x = 11,355.80 × 2,640.36
  4. Step 4: Simplify right side
    7,570.74x = 29,983,400.09
  5. Step 5: Solve for x
    x = 29,983,400.09/7,570.74
  6. Step 6: Final answer
    x = 3,960.43

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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.