Home / 2,190.05-3,022.54-1,246.08

Finding the Fourth Proportional to 2,190.05, 3,022.54 and 1,246.08

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Solution

The fourth proportional to 2,190.05, 3,022.54 and 1,246.08 is: 1,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.05 : 3,022.54 = 1,246.08 : x
  2. Step 2: Convert to fraction form
    2,190.05/3,022.54 = 1,246.08/x
  3. Step 3: Cross multiply
    2,190.05x = 3,022.54 × 1,246.08
  4. Step 4: Simplify right side
    2,190.05x = 3,766,312.86
  5. Step 5: Solve for x
    x = 3,766,312.86/2,190.05
  6. Step 6: Final answer
    x = 1,719.73

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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.