Home / 2,579.37-3,869.02-1,119.57

Finding the Fourth Proportional to 2,579.37, 3,869.02 and 1,119.57

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Solution

The fourth proportional to 2,579.37, 3,869.02 and 1,119.57 is: 1,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.37 : 3,869.02 = 1,119.57 : x
  2. Step 2: Convert to fraction form
    2,579.37/3,869.02 = 1,119.57/x
  3. Step 3: Cross multiply
    2,579.37x = 3,869.02 × 1,119.57
  4. Step 4: Simplify right side
    2,579.37x = 4,331,638.72
  5. Step 5: Solve for x
    x = 4,331,638.72/2,579.37
  6. Step 6: Final answer
    x = 1,679.34

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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.