Home / 2,389.44-3,288.24-2,321.76

Finding the Fourth Proportional to 2,389.44, 3,288.24 and 2,321.76

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Solution

The fourth proportional to 2,389.44, 3,288.24 and 2,321.76 is: 3,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.44 : 3,288.24 = 2,321.76 : x
  2. Step 2: Convert to fraction form
    2,389.44/3,288.24 = 2,321.76/x
  3. Step 3: Cross multiply
    2,389.44x = 3,288.24 × 2,321.76
  4. Step 4: Simplify right side
    2,389.44x = 7,634,504.10
  5. Step 5: Solve for x
    x = 7,634,504.10/2,389.44
  6. Step 6: Final answer
    x = 3,195.10

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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.