Home / 2,312.43-3,467.99-1,078.62

Finding the Fourth Proportional to 2,312.43, 3,467.99 and 1,078.62

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Solution

The fourth proportional to 2,312.43, 3,467.99 and 1,078.62 is: 1,617.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.43 : 3,467.99 = 1,078.62 : x
  2. Step 2: Convert to fraction form
    2,312.43/3,467.99 = 1,078.62/x
  3. Step 3: Cross multiply
    2,312.43x = 3,467.99 × 1,078.62
  4. Step 4: Simplify right side
    2,312.43x = 3,740,637.98
  5. Step 5: Solve for x
    x = 3,740,637.98/2,312.43
  6. Step 6: Final answer
    x = 1,617.62

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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.