Home / 3,921.43-5,881.53-1,147.45

Finding the Fourth Proportional to 3,921.43, 5,881.53 and 1,147.45

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Solution

The fourth proportional to 3,921.43, 5,881.53 and 1,147.45 is: 1,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.43 : 5,881.53 = 1,147.45 : x
  2. Step 2: Convert to fraction form
    3,921.43/5,881.53 = 1,147.45/x
  3. Step 3: Cross multiply
    3,921.43x = 5,881.53 × 1,147.45
  4. Step 4: Simplify right side
    3,921.43x = 6,748,751.20
  5. Step 5: Solve for x
    x = 6,748,751.20/3,921.43
  6. Step 6: Final answer
    x = 1,720.99

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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.