Home / 7,315.48-10,973.94-2,122.12

Finding the Fourth Proportional to 7,315.48, 10,973.94 and 2,122.12

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Solution

The fourth proportional to 7,315.48, 10,973.94 and 2,122.12 is: 3,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.48 : 10,973.94 = 2,122.12 : x
  2. Step 2: Convert to fraction form
    7,315.48/10,973.94 = 2,122.12/x
  3. Step 3: Cross multiply
    7,315.48x = 10,973.94 × 2,122.12
  4. Step 4: Simplify right side
    7,315.48x = 23,288,017.55
  5. Step 5: Solve for x
    x = 23,288,017.55/7,315.48
  6. Step 6: Final answer
    x = 3,183.39

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1.5x scale

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.