Home / 2,321.68-3,201.78-2,154.02

Finding the Fourth Proportional to 2,321.68, 3,201.78 and 2,154.02

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Solution

The fourth proportional to 2,321.68, 3,201.78 and 2,154.02 is: 2,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.68 : 3,201.78 = 2,154.02 : x
  2. Step 2: Convert to fraction form
    2,321.68/3,201.78 = 2,154.02/x
  3. Step 3: Cross multiply
    2,321.68x = 3,201.78 × 2,154.02
  4. Step 4: Simplify right side
    2,321.68x = 6,896,698.16
  5. Step 5: Solve for x
    x = 6,896,698.16/2,321.68
  6. Step 6: Final answer
    x = 2,970.56

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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.