Home / 1,942.14-2,913.75-1,077.06

Finding the Fourth Proportional to 1,942.14, 2,913.75 and 1,077.06

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Solution

The fourth proportional to 1,942.14, 2,913.75 and 1,077.06 is: 1,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.14 : 2,913.75 = 1,077.06 : x
  2. Step 2: Convert to fraction form
    1,942.14/2,913.75 = 1,077.06/x
  3. Step 3: Cross multiply
    1,942.14x = 2,913.75 × 1,077.06
  4. Step 4: Simplify right side
    1,942.14x = 3,138,283.58
  5. Step 5: Solve for x
    x = 3,138,283.58/1,942.14
  6. Step 6: Final answer
    x = 1,615.89

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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.