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Finding the Fourth Proportional to 2,275.06, 3,413.10 and 888.40

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Solution

The fourth proportional to 2,275.06, 3,413.10 and 888.40 is: 1,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.06 : 3,413.10 = 888.40 : x
  2. Step 2: Convert to fraction form
    2,275.06/3,413.10 = 888.40/x
  3. Step 3: Cross multiply
    2,275.06x = 3,413.10 × 888.40
  4. Step 4: Simplify right side
    2,275.06x = 3,032,198.04
  5. Step 5: Solve for x
    x = 3,032,198.04/2,275.06
  6. Step 6: Final answer
    x = 1,332.80

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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.