Home / 2,889.79-4,330.58-2,158.52

Finding the Fourth Proportional to 2,889.79, 4,330.58 and 2,158.52

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Solution

The fourth proportional to 2,889.79, 4,330.58 and 2,158.52 is: 3,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.79 : 4,330.58 = 2,158.52 : x
  2. Step 2: Convert to fraction form
    2,889.79/4,330.58 = 2,158.52/x
  3. Step 3: Cross multiply
    2,889.79x = 4,330.58 × 2,158.52
  4. Step 4: Simplify right side
    2,889.79x = 9,347,611.10
  5. Step 5: Solve for x
    x = 9,347,611.10/2,889.79
  6. Step 6: Final answer
    x = 3,234.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.