Home / 5,629.89-8,446.31-2,119.93

Finding the Fourth Proportional to 5,629.89, 8,446.31 and 2,119.93

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Solution

The fourth proportional to 5,629.89, 8,446.31 and 2,119.93 is: 3,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.89 : 8,446.31 = 2,119.93 : x
  2. Step 2: Convert to fraction form
    5,629.89/8,446.31 = 2,119.93/x
  3. Step 3: Cross multiply
    5,629.89x = 8,446.31 × 2,119.93
  4. Step 4: Simplify right side
    5,629.89x = 17,905,585.95
  5. Step 5: Solve for x
    x = 17,905,585.95/5,629.89
  6. Step 6: Final answer
    x = 3,180.45

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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.