Home / 3,139.93-4,708.81-1,579.33

Finding the Fourth Proportional to 3,139.93, 4,708.81 and 1,579.33

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Solution

The fourth proportional to 3,139.93, 4,708.81 and 1,579.33 is: 2,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.93 : 4,708.81 = 1,579.33 : x
  2. Step 2: Convert to fraction form
    3,139.93/4,708.81 = 1,579.33/x
  3. Step 3: Cross multiply
    3,139.93x = 4,708.81 × 1,579.33
  4. Step 4: Simplify right side
    3,139.93x = 7,436,764.90
  5. Step 5: Solve for x
    x = 7,436,764.90/3,139.93
  6. Step 6: Final answer
    x = 2,368.45

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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.