Home / 2,007.96-3,009.78-1,312.44

Finding the Fourth Proportional to 2,007.96, 3,009.78 and 1,312.44

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Solution

The fourth proportional to 2,007.96, 3,009.78 and 1,312.44 is: 1,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.96 : 3,009.78 = 1,312.44 : x
  2. Step 2: Convert to fraction form
    2,007.96/3,009.78 = 1,312.44/x
  3. Step 3: Cross multiply
    2,007.96x = 3,009.78 × 1,312.44
  4. Step 4: Simplify right side
    2,007.96x = 3,950,155.66
  5. Step 5: Solve for x
    x = 3,950,155.66/2,007.96
  6. Step 6: Final answer
    x = 1,967.25

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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.