Home / 7,386.66-11,080.08-2,121.84

Finding the Fourth Proportional to 7,386.66, 11,080.08 and 2,121.84

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Solution

The fourth proportional to 7,386.66, 11,080.08 and 2,121.84 is: 3,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.66 : 11,080.08 = 2,121.84 : x
  2. Step 2: Convert to fraction form
    7,386.66/11,080.08 = 2,121.84/x
  3. Step 3: Cross multiply
    7,386.66x = 11,080.08 × 2,121.84
  4. Step 4: Simplify right side
    7,386.66x = 23,510,156.95
  5. Step 5: Solve for x
    x = 23,510,156.95/7,386.66
  6. Step 6: Final answer
    x = 3,182.79

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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.