Home / 2,190.74-3,270.50-2,113.85

Finding the Fourth Proportional to 2,190.74, 3,270.50 and 2,113.85

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Solution

The fourth proportional to 2,190.74, 3,270.50 and 2,113.85 is: 3,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.74 : 3,270.50 = 2,113.85 : x
  2. Step 2: Convert to fraction form
    2,190.74/3,270.50 = 2,113.85/x
  3. Step 3: Cross multiply
    2,190.74x = 3,270.50 × 2,113.85
  4. Step 4: Simplify right side
    2,190.74x = 6,913,347.62
  5. Step 5: Solve for x
    x = 6,913,347.62/2,190.74
  6. Step 6: Final answer
    x = 3,155.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.