Home / 7,551.13-11,326.71-2,620.78

Finding the Fourth Proportional to 7,551.13, 11,326.71 and 2,620.78

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Solution

The fourth proportional to 7,551.13, 11,326.71 and 2,620.78 is: 3,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.13 : 11,326.71 = 2,620.78 : x
  2. Step 2: Convert to fraction form
    7,551.13/11,326.71 = 2,620.78/x
  3. Step 3: Cross multiply
    7,551.13x = 11,326.71 × 2,620.78
  4. Step 4: Simplify right side
    7,551.13x = 29,684,815.03
  5. Step 5: Solve for x
    x = 29,684,815.03/7,551.13
  6. Step 6: Final answer
    x = 3,931.18

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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.