Home / 2,490.10-3,735.18-1,959.74

Finding the Fourth Proportional to 2,490.10, 3,735.18 and 1,959.74

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Solution

The fourth proportional to 2,490.10, 3,735.18 and 1,959.74 is: 2,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.10 : 3,735.18 = 1,959.74 : x
  2. Step 2: Convert to fraction form
    2,490.10/3,735.18 = 1,959.74/x
  3. Step 3: Cross multiply
    2,490.10x = 3,735.18 × 1,959.74
  4. Step 4: Simplify right side
    2,490.10x = 7,319,981.65
  5. Step 5: Solve for x
    x = 7,319,981.65/2,490.10
  6. Step 6: Final answer
    x = 2,939.63

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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.