Home / 2,579.35-3,869.67-1,409.02

Finding the Fourth Proportional to 2,579.35, 3,869.67 and 1,409.02

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Solution

The fourth proportional to 2,579.35, 3,869.67 and 1,409.02 is: 2,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.35 : 3,869.67 = 1,409.02 : x
  2. Step 2: Convert to fraction form
    2,579.35/3,869.67 = 1,409.02/x
  3. Step 3: Cross multiply
    2,579.35x = 3,869.67 × 1,409.02
  4. Step 4: Simplify right side
    2,579.35x = 5,452,442.42
  5. Step 5: Solve for x
    x = 5,452,442.42/2,579.35
  6. Step 6: Final answer
    x = 2,113.88

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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.