Home / 1,968.05-2,715.91-1,083.92

Finding the Fourth Proportional to 1,968.05, 2,715.91 and 1,083.92

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Solution

The fourth proportional to 1,968.05, 2,715.91 and 1,083.92 is: 1,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.05 : 2,715.91 = 1,083.92 : x
  2. Step 2: Convert to fraction form
    1,968.05/2,715.91 = 1,083.92/x
  3. Step 3: Cross multiply
    1,968.05x = 2,715.91 × 1,083.92
  4. Step 4: Simplify right side
    1,968.05x = 2,943,812.88
  5. Step 5: Solve for x
    x = 2,943,812.88/1,968.05
  6. Step 6: Final answer
    x = 1,495.80

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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.