Home / 3,992.90-5,509.95-2,314.18

Finding the Fourth Proportional to 3,992.90, 5,509.95 and 2,314.18

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Solution

The fourth proportional to 3,992.90, 5,509.95 and 2,314.18 is: 3,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.90 : 5,509.95 = 2,314.18 : x
  2. Step 2: Convert to fraction form
    3,992.90/5,509.95 = 2,314.18/x
  3. Step 3: Cross multiply
    3,992.90x = 5,509.95 × 2,314.18
  4. Step 4: Simplify right side
    3,992.90x = 12,751,005.31
  5. Step 5: Solve for x
    x = 12,751,005.31/3,992.90
  6. Step 6: Final answer
    x = 3,193.42

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1.5x scale

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.