Home / 1,424.32-2,135.41-960.79

Finding the Fourth Proportional to 1,424.32, 2,135.41 and 960.79

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Solution

The fourth proportional to 1,424.32, 2,135.41 and 960.79 is: 1,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.32 : 2,135.41 = 960.79 : x
  2. Step 2: Convert to fraction form
    1,424.32/2,135.41 = 960.79/x
  3. Step 3: Cross multiply
    1,424.32x = 2,135.41 × 960.79
  4. Step 4: Simplify right side
    1,424.32x = 2,051,680.57
  5. Step 5: Solve for x
    x = 2,051,680.57/1,424.32
  6. Step 6: Final answer
    x = 1,440.46

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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.