Home / 5,139.60-7,709.94-1,676.04

Finding the Fourth Proportional to 5,139.60, 7,709.94 and 1,676.04

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Solution

The fourth proportional to 5,139.60, 7,709.94 and 1,676.04 is: 2,514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.60 : 7,709.94 = 1,676.04 : x
  2. Step 2: Convert to fraction form
    5,139.60/7,709.94 = 1,676.04/x
  3. Step 3: Cross multiply
    5,139.60x = 7,709.94 × 1,676.04
  4. Step 4: Simplify right side
    5,139.60x = 12,922,167.84
  5. Step 5: Solve for x
    x = 12,922,167.84/5,139.60
  6. Step 6: Final answer
    x = 2,514.24

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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.