Home / 2,490.28-3,730.20-1,190.44

Finding the Fourth Proportional to 2,490.28, 3,730.20 and 1,190.44

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Solution

The fourth proportional to 2,490.28, 3,730.20 and 1,190.44 is: 1,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.28 : 3,730.20 = 1,190.44 : x
  2. Step 2: Convert to fraction form
    2,490.28/3,730.20 = 1,190.44/x
  3. Step 3: Cross multiply
    2,490.28x = 3,730.20 × 1,190.44
  4. Step 4: Simplify right side
    2,490.28x = 4,440,579.29
  5. Step 5: Solve for x
    x = 4,440,579.29/2,490.28
  6. Step 6: Final answer
    x = 1,783.16

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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.