Home / 2,723.65-4,085.93-2,138.63

Finding the Fourth Proportional to 2,723.65, 4,085.93 and 2,138.63

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Solution

The fourth proportional to 2,723.65, 4,085.93 and 2,138.63 is: 3,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.65 : 4,085.93 = 2,138.63 : x
  2. Step 2: Convert to fraction form
    2,723.65/4,085.93 = 2,138.63/x
  3. Step 3: Cross multiply
    2,723.65x = 4,085.93 × 2,138.63
  4. Step 4: Simplify right side
    2,723.65x = 8,738,265.36
  5. Step 5: Solve for x
    x = 8,738,265.36/2,723.65
  6. Step 6: Final answer
    x = 3,208.30

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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.