Home / 5,021.78-7,534.95-2,101.94

Finding the Fourth Proportional to 5,021.78, 7,534.95 and 2,101.94

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Solution

The fourth proportional to 5,021.78, 7,534.95 and 2,101.94 is: 3,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.78 : 7,534.95 = 2,101.94 : x
  2. Step 2: Convert to fraction form
    5,021.78/7,534.95 = 2,101.94/x
  3. Step 3: Cross multiply
    5,021.78x = 7,534.95 × 2,101.94
  4. Step 4: Simplify right side
    5,021.78x = 15,838,012.80
  5. Step 5: Solve for x
    x = 15,838,012.80/5,021.78
  6. Step 6: Final answer
    x = 3,153.86

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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.