Home / 4,905.22-6,769.18-2,889.81

Finding the Fourth Proportional to 4,905.22, 6,769.18 and 2,889.81

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Solution

The fourth proportional to 4,905.22, 6,769.18 and 2,889.81 is: 3,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.22 : 6,769.18 = 2,889.81 : x
  2. Step 2: Convert to fraction form
    4,905.22/6,769.18 = 2,889.81/x
  3. Step 3: Cross multiply
    4,905.22x = 6,769.18 × 2,889.81
  4. Step 4: Simplify right side
    4,905.22x = 19,561,644.06
  5. Step 5: Solve for x
    x = 19,561,644.06/4,905.22
  6. Step 6: Final answer
    x = 3,987.92

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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.