Home / 3,615.76-4,989.73-2,199.91

Finding the Fourth Proportional to 3,615.76, 4,989.73 and 2,199.91

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Solution

The fourth proportional to 3,615.76, 4,989.73 and 2,199.91 is: 3,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.76 : 4,989.73 = 2,199.91 : x
  2. Step 2: Convert to fraction form
    3,615.76/4,989.73 = 2,199.91/x
  3. Step 3: Cross multiply
    3,615.76x = 4,989.73 × 2,199.91
  4. Step 4: Simplify right side
    3,615.76x = 10,976,956.92
  5. Step 5: Solve for x
    x = 10,976,956.92/3,615.76
  6. Step 6: Final answer
    x = 3,035.86

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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.