Home / 2,490.24-3,736.80-2,006.40

Finding the Fourth Proportional to 2,490.24, 3,736.80 and 2,006.40

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Solution

The fourth proportional to 2,490.24, 3,736.80 and 2,006.40 is: 3,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.24 : 3,736.80 = 2,006.40 : x
  2. Step 2: Convert to fraction form
    2,490.24/3,736.80 = 2,006.40/x
  3. Step 3: Cross multiply
    2,490.24x = 3,736.80 × 2,006.40
  4. Step 4: Simplify right side
    2,490.24x = 7,497,515.52
  5. Step 5: Solve for x
    x = 7,497,515.52/2,490.24
  6. Step 6: Final answer
    x = 3,010.76

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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.