Home / 1,424.28-2,133.58-935.85

Finding the Fourth Proportional to 1,424.28, 2,133.58 and 935.85

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Solution

The fourth proportional to 1,424.28, 2,133.58 and 935.85 is: 1,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.28 : 2,133.58 = 935.85 : x
  2. Step 2: Convert to fraction form
    1,424.28/2,133.58 = 935.85/x
  3. Step 3: Cross multiply
    1,424.28x = 2,133.58 × 935.85
  4. Step 4: Simplify right side
    1,424.28x = 1,996,710.84
  5. Step 5: Solve for x
    x = 1,996,710.84/1,424.28
  6. Step 6: Final answer
    x = 1,401.91

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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.