Home / 2,830.45-4,247.40-1,789.02

Finding the Fourth Proportional to 2,830.45, 4,247.40 and 1,789.02

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Solution

The fourth proportional to 2,830.45, 4,247.40 and 1,789.02 is: 2,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.45 : 4,247.40 = 1,789.02 : x
  2. Step 2: Convert to fraction form
    2,830.45/4,247.40 = 1,789.02/x
  3. Step 3: Cross multiply
    2,830.45x = 4,247.40 × 1,789.02
  4. Step 4: Simplify right side
    2,830.45x = 7,598,679.41
  5. Step 5: Solve for x
    x = 7,598,679.41/2,830.45
  6. Step 6: Final answer
    x = 2,684.62

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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.