Home / 5,173.31-7,139.21-3,048.42

Finding the Fourth Proportional to 5,173.31, 7,139.21 and 3,048.42

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Solution

The fourth proportional to 5,173.31, 7,139.21 and 3,048.42 is: 4,206.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.31 : 7,139.21 = 3,048.42 : x
  2. Step 2: Convert to fraction form
    5,173.31/7,139.21 = 3,048.42/x
  3. Step 3: Cross multiply
    5,173.31x = 7,139.21 × 3,048.42
  4. Step 4: Simplify right side
    5,173.31x = 21,763,295.31
  5. Step 5: Solve for x
    x = 21,763,295.31/5,173.31
  6. Step 6: Final answer
    x = 4,206.85

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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.