Home / 2,142.83-3,208.70-1,956.93

Finding the Fourth Proportional to 2,142.83, 3,208.70 and 1,956.93

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Solution

The fourth proportional to 2,142.83, 3,208.70 and 1,956.93 is: 2,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.83 : 3,208.70 = 1,956.93 : x
  2. Step 2: Convert to fraction form
    2,142.83/3,208.70 = 1,956.93/x
  3. Step 3: Cross multiply
    2,142.83x = 3,208.70 × 1,956.93
  4. Step 4: Simplify right side
    2,142.83x = 6,279,191.51
  5. Step 5: Solve for x
    x = 6,279,191.51/2,142.83
  6. Step 6: Final answer
    x = 2,930.33

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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.