Home / 3,784.10-5,222.36-2,191.28

Finding the Fourth Proportional to 3,784.10, 5,222.36 and 2,191.28

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Solution

The fourth proportional to 3,784.10, 5,222.36 and 2,191.28 is: 3,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.10 : 5,222.36 = 2,191.28 : x
  2. Step 2: Convert to fraction form
    3,784.10/5,222.36 = 2,191.28/x
  3. Step 3: Cross multiply
    3,784.10x = 5,222.36 × 2,191.28
  4. Step 4: Simplify right side
    3,784.10x = 11,443,615.95
  5. Step 5: Solve for x
    x = 11,443,615.95/3,784.10
  6. Step 6: Final answer
    x = 3,024.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.