Home / 3,543.86-5,325.51-2,161.19

Finding the Fourth Proportional to 3,543.86, 5,325.51 and 2,161.19

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Solution

The fourth proportional to 3,543.86, 5,325.51 and 2,161.19 is: 3,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.86 : 5,325.51 = 2,161.19 : x
  2. Step 2: Convert to fraction form
    3,543.86/5,325.51 = 2,161.19/x
  3. Step 3: Cross multiply
    3,543.86x = 5,325.51 × 2,161.19
  4. Step 4: Simplify right side
    3,543.86x = 11,509,438.96
  5. Step 5: Solve for x
    x = 11,509,438.96/3,543.86
  6. Step 6: Final answer
    x = 3,247.71

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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.