Home / 7,122.20-10,683.43-2,447.57

Finding the Fourth Proportional to 7,122.20, 10,683.43 and 2,447.57

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Solution

The fourth proportional to 7,122.20, 10,683.43 and 2,447.57 is: 3,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.20 : 10,683.43 = 2,447.57 : x
  2. Step 2: Convert to fraction form
    7,122.20/10,683.43 = 2,447.57/x
  3. Step 3: Cross multiply
    7,122.20x = 10,683.43 × 2,447.57
  4. Step 4: Simplify right side
    7,122.20x = 26,148,463.35
  5. Step 5: Solve for x
    x = 26,148,463.35/7,122.20
  6. Step 6: Final answer
    x = 3,671.41

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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.