Home / 2,188.20-3,019.64-1,349.25

Finding the Fourth Proportional to 2,188.20, 3,019.64 and 1,349.25

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Solution

The fourth proportional to 2,188.20, 3,019.64 and 1,349.25 is: 1,861.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.20 : 3,019.64 = 1,349.25 : x
  2. Step 2: Convert to fraction form
    2,188.20/3,019.64 = 1,349.25/x
  3. Step 3: Cross multiply
    2,188.20x = 3,019.64 × 1,349.25
  4. Step 4: Simplify right side
    2,188.20x = 4,074,249.27
  5. Step 5: Solve for x
    x = 4,074,249.27/2,188.20
  6. Step 6: Final answer
    x = 1,861.92

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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.