Home / 3,096.89-4,275.70-1,918.64

Finding the Fourth Proportional to 3,096.89, 4,275.70 and 1,918.64

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Solution

The fourth proportional to 3,096.89, 4,275.70 and 1,918.64 is: 2,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,096.89 : 4,275.70 = 1,918.64 : x
  2. Step 2: Convert to fraction form
    3,096.89/4,275.70 = 1,918.64/x
  3. Step 3: Cross multiply
    3,096.89x = 4,275.70 × 1,918.64
  4. Step 4: Simplify right side
    3,096.89x = 8,203,529.05
  5. Step 5: Solve for x
    x = 8,203,529.05/3,096.89
  6. Step 6: Final answer
    x = 2,648.96

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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.