Home / 7,572.77-11,361.05-2,642.45

Finding the Fourth Proportional to 7,572.77, 11,361.05 and 2,642.45

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Solution

The fourth proportional to 7,572.77, 11,361.05 and 2,642.45 is: 3,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.77 : 11,361.05 = 2,642.45 : x
  2. Step 2: Convert to fraction form
    7,572.77/11,361.05 = 2,642.45/x
  3. Step 3: Cross multiply
    7,572.77x = 11,361.05 × 2,642.45
  4. Step 4: Simplify right side
    7,572.77x = 30,020,936.56
  5. Step 5: Solve for x
    x = 30,020,936.56/7,572.77
  6. Step 6: Final answer
    x = 3,964.33

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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.