Home / 3,182.46-4,392.36-2,189.20

Finding the Fourth Proportional to 3,182.46, 4,392.36 and 2,189.20

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Solution

The fourth proportional to 3,182.46, 4,392.36 and 2,189.20 is: 3,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.46 : 4,392.36 = 2,189.20 : x
  2. Step 2: Convert to fraction form
    3,182.46/4,392.36 = 2,189.20/x
  3. Step 3: Cross multiply
    3,182.46x = 4,392.36 × 2,189.20
  4. Step 4: Simplify right side
    3,182.46x = 9,615,754.51
  5. Step 5: Solve for x
    x = 9,615,754.51/3,182.46
  6. Step 6: Final answer
    x = 3,021.48

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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.