Home / 1,490.28-2,236.20-1,004.28

Finding the Fourth Proportional to 1,490.28, 2,236.20 and 1,004.28

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Solution

The fourth proportional to 1,490.28, 2,236.20 and 1,004.28 is: 1,506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.28 : 2,236.20 = 1,004.28 : x
  2. Step 2: Convert to fraction form
    1,490.28/2,236.20 = 1,004.28/x
  3. Step 3: Cross multiply
    1,490.28x = 2,236.20 × 1,004.28
  4. Step 4: Simplify right side
    1,490.28x = 2,245,770.94
  5. Step 5: Solve for x
    x = 2,245,770.94/1,490.28
  6. Step 6: Final answer
    x = 1,506.95

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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.