Home / 2,190.52-3,022.98-1,246.20

Finding the Fourth Proportional to 2,190.52, 3,022.98 and 1,246.20

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Solution

The fourth proportional to 2,190.52, 3,022.98 and 1,246.20 is: 1,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.52 : 3,022.98 = 1,246.20 : x
  2. Step 2: Convert to fraction form
    2,190.52/3,022.98 = 1,246.20/x
  3. Step 3: Cross multiply
    2,190.52x = 3,022.98 × 1,246.20
  4. Step 4: Simplify right side
    2,190.52x = 3,767,237.68
  5. Step 5: Solve for x
    x = 3,767,237.68/2,190.52
  6. Step 6: Final answer
    x = 1,719.79

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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.