Home / 7,386.44-11,077.10-2,120.02

Finding the Fourth Proportional to 7,386.44, 11,077.10 and 2,120.02

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Solution

The fourth proportional to 7,386.44, 11,077.10 and 2,120.02 is: 3,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.44 : 11,077.10 = 2,120.02 : x
  2. Step 2: Convert to fraction form
    7,386.44/11,077.10 = 2,120.02/x
  3. Step 3: Cross multiply
    7,386.44x = 11,077.10 × 2,120.02
  4. Step 4: Simplify right side
    7,386.44x = 23,483,717.43
  5. Step 5: Solve for x
    x = 23,483,717.43/7,386.44
  6. Step 6: Final answer
    x = 3,179.30

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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.