Home / 5,112.21-7,053.57-3,122.04

Finding the Fourth Proportional to 5,112.21, 7,053.57 and 3,122.04

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Solution

The fourth proportional to 5,112.21, 7,053.57 and 3,122.04 is: 4,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.21 : 7,053.57 = 3,122.04 : x
  2. Step 2: Convert to fraction form
    5,112.21/7,053.57 = 3,122.04/x
  3. Step 3: Cross multiply
    5,112.21x = 7,053.57 × 3,122.04
  4. Step 4: Simplify right side
    5,112.21x = 22,021,527.68
  5. Step 5: Solve for x
    x = 22,021,527.68/5,112.21
  6. Step 6: Final answer
    x = 4,307.63

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1.5x scale

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.