Home / 2,390.28-3,581.22-1,660.32

Finding the Fourth Proportional to 2,390.28, 3,581.22 and 1,660.32

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Solution

The fourth proportional to 2,390.28, 3,581.22 and 1,660.32 is: 2,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.28 : 3,581.22 = 1,660.32 : x
  2. Step 2: Convert to fraction form
    2,390.28/3,581.22 = 1,660.32/x
  3. Step 3: Cross multiply
    2,390.28x = 3,581.22 × 1,660.32
  4. Step 4: Simplify right side
    2,390.28x = 5,945,971.19
  5. Step 5: Solve for x
    x = 5,945,971.19/2,390.28
  6. Step 6: Final answer
    x = 2,487.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.