Home / 2,992.24-4,128.16-1,812.88

Finding the Fourth Proportional to 2,992.24, 4,128.16 and 1,812.88

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Solution

The fourth proportional to 2,992.24, 4,128.16 and 1,812.88 is: 2,501.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.24 : 4,128.16 = 1,812.88 : x
  2. Step 2: Convert to fraction form
    2,992.24/4,128.16 = 1,812.88/x
  3. Step 3: Cross multiply
    2,992.24x = 4,128.16 × 1,812.88
  4. Step 4: Simplify right side
    2,992.24x = 7,483,858.70
  5. Step 5: Solve for x
    x = 7,483,858.70/2,992.24
  6. Step 6: Final answer
    x = 2,501.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.