Home / 1,821.11-2,513.12-1,035.14

Finding the Fourth Proportional to 1,821.11, 2,513.12 and 1,035.14

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Solution

The fourth proportional to 1,821.11, 2,513.12 and 1,035.14 is: 1,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.11 : 2,513.12 = 1,035.14 : x
  2. Step 2: Convert to fraction form
    1,821.11/2,513.12 = 1,035.14/x
  3. Step 3: Cross multiply
    1,821.11x = 2,513.12 × 1,035.14
  4. Step 4: Simplify right side
    1,821.11x = 2,601,413.30
  5. Step 5: Solve for x
    x = 2,601,413.30/1,821.11
  6. Step 6: Final answer
    x = 1,428.48

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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.