Home / 3,670.68-5,492.37-2,190.70

Finding the Fourth Proportional to 3,670.68, 5,492.37 and 2,190.70

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Solution

The fourth proportional to 3,670.68, 5,492.37 and 2,190.70 is: 3,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.68 : 5,492.37 = 2,190.70 : x
  2. Step 2: Convert to fraction form
    3,670.68/5,492.37 = 2,190.70/x
  3. Step 3: Cross multiply
    3,670.68x = 5,492.37 × 2,190.70
  4. Step 4: Simplify right side
    3,670.68x = 12,032,134.96
  5. Step 5: Solve for x
    x = 12,032,134.96/3,670.68
  6. Step 6: Final answer
    x = 3,277.90

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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.