Home / 3,491.79-5,261.67-2,889.06

Finding the Fourth Proportional to 3,491.79, 5,261.67 and 2,889.06

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Solution

The fourth proportional to 3,491.79, 5,261.67 and 2,889.06 is: 4,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.79 : 5,261.67 = 2,889.06 : x
  2. Step 2: Convert to fraction form
    3,491.79/5,261.67 = 2,889.06/x
  3. Step 3: Cross multiply
    3,491.79x = 5,261.67 × 2,889.06
  4. Step 4: Simplify right side
    3,491.79x = 15,201,280.33
  5. Step 5: Solve for x
    x = 15,201,280.33/3,491.79
  6. Step 6: Final answer
    x = 4,353.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.