Home / 1,968.99-2,717.30-1,129.94

Finding the Fourth Proportional to 1,968.99, 2,717.30 and 1,129.94

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Solution

The fourth proportional to 1,968.99, 2,717.30 and 1,129.94 is: 1,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.99 : 2,717.30 = 1,129.94 : x
  2. Step 2: Convert to fraction form
    1,968.99/2,717.30 = 1,129.94/x
  3. Step 3: Cross multiply
    1,968.99x = 2,717.30 × 1,129.94
  4. Step 4: Simplify right side
    1,968.99x = 3,070,366.73
  5. Step 5: Solve for x
    x = 3,070,366.73/1,968.99
  6. Step 6: Final answer
    x = 1,559.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.