Home / 3,709.76-5,118.56-2,218.16

Finding the Fourth Proportional to 3,709.76, 5,118.56 and 2,218.16

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Solution

The fourth proportional to 3,709.76, 5,118.56 and 2,218.16 is: 3,060.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.76 : 5,118.56 = 2,218.16 : x
  2. Step 2: Convert to fraction form
    3,709.76/5,118.56 = 2,218.16/x
  3. Step 3: Cross multiply
    3,709.76x = 5,118.56 × 2,218.16
  4. Step 4: Simplify right side
    3,709.76x = 11,353,785.05
  5. Step 5: Solve for x
    x = 11,353,785.05/3,709.76
  6. Step 6: Final answer
    x = 3,060.52

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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.