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Finding the Fourth Proportional to 2,697.63, 3,722.81 and 1,518.68

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Solution

The fourth proportional to 2,697.63, 3,722.81 and 1,518.68 is: 2,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.63 : 3,722.81 = 1,518.68 : x
  2. Step 2: Convert to fraction form
    2,697.63/3,722.81 = 1,518.68/x
  3. Step 3: Cross multiply
    2,697.63x = 3,722.81 × 1,518.68
  4. Step 4: Simplify right side
    2,697.63x = 5,653,730.88
  5. Step 5: Solve for x
    x = 5,653,730.88/2,697.63
  6. Step 6: Final answer
    x = 2,095.81

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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.