Home / 3,011.22-4,155.87-2,174.70

Finding the Fourth Proportional to 3,011.22, 4,155.87 and 2,174.70

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Solution

The fourth proportional to 3,011.22, 4,155.87 and 2,174.70 is: 3,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.22 : 4,155.87 = 2,174.70 : x
  2. Step 2: Convert to fraction form
    3,011.22/4,155.87 = 2,174.70/x
  3. Step 3: Cross multiply
    3,011.22x = 4,155.87 × 2,174.70
  4. Step 4: Simplify right side
    3,011.22x = 9,037,770.49
  5. Step 5: Solve for x
    x = 9,037,770.49/3,011.22
  6. Step 6: Final answer
    x = 3,001.37

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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.