Home / 3,011.67-4,157.42-2,161.53

Finding the Fourth Proportional to 3,011.67, 4,157.42 and 2,161.53

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Solution

The fourth proportional to 3,011.67, 4,157.42 and 2,161.53 is: 2,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.67 : 4,157.42 = 2,161.53 : x
  2. Step 2: Convert to fraction form
    3,011.67/4,157.42 = 2,161.53/x
  3. Step 3: Cross multiply
    3,011.67x = 4,157.42 × 2,161.53
  4. Step 4: Simplify right side
    3,011.67x = 8,986,377.24
  5. Step 5: Solve for x
    x = 8,986,377.24/3,011.67
  6. Step 6: Final answer
    x = 2,983.85

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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.