Home / 2,992.16-4,490.40-1,260.80

Finding the Fourth Proportional to 2,992.16, 4,490.40 and 1,260.80

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Solution

The fourth proportional to 2,992.16, 4,490.40 and 1,260.80 is: 1,892.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.16 : 4,490.40 = 1,260.80 : x
  2. Step 2: Convert to fraction form
    2,992.16/4,490.40 = 1,260.80/x
  3. Step 3: Cross multiply
    2,992.16x = 4,490.40 × 1,260.80
  4. Step 4: Simplify right side
    2,992.16x = 5,661,496.32
  5. Step 5: Solve for x
    x = 5,661,496.32/2,992.16
  6. Step 6: Final answer
    x = 1,892.11

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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.