Home / 2,390.33-3,298.60-1,328.11

Finding the Fourth Proportional to 2,390.33, 3,298.60 and 1,328.11

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Solution

The fourth proportional to 2,390.33, 3,298.60 and 1,328.11 is: 1,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.33 : 3,298.60 = 1,328.11 : x
  2. Step 2: Convert to fraction form
    2,390.33/3,298.60 = 1,328.11/x
  3. Step 3: Cross multiply
    2,390.33x = 3,298.60 × 1,328.11
  4. Step 4: Simplify right side
    2,390.33x = 4,380,903.65
  5. Step 5: Solve for x
    x = 4,380,903.65/2,390.33
  6. Step 6: Final answer
    x = 1,832.76

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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.