Home / 1,464.50-2,020.40-960.21

Finding the Fourth Proportional to 1,464.50, 2,020.40 and 960.21

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Solution

The fourth proportional to 1,464.50, 2,020.40 and 960.21 is: 1,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.50 : 2,020.40 = 960.21 : x
  2. Step 2: Convert to fraction form
    1,464.50/2,020.40 = 960.21/x
  3. Step 3: Cross multiply
    1,464.50x = 2,020.40 × 960.21
  4. Step 4: Simplify right side
    1,464.50x = 1,940,008.28
  5. Step 5: Solve for x
    x = 1,940,008.28/1,464.50
  6. Step 6: Final answer
    x = 1,324.69

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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.