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Finding the Fourth Proportional to 2,275.08, 3,413.10 and 715.02

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Solution

The fourth proportional to 2,275.08, 3,413.10 and 715.02 is: 1,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.08 : 3,413.10 = 715.02 : x
  2. Step 2: Convert to fraction form
    2,275.08/3,413.10 = 715.02/x
  3. Step 3: Cross multiply
    2,275.08x = 3,413.10 × 715.02
  4. Step 4: Simplify right side
    2,275.08x = 2,440,434.76
  5. Step 5: Solve for x
    x = 2,440,434.76/2,275.08
  6. Step 6: Final answer
    x = 1,072.68

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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.