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Finding the Fourth Proportional to 4,413.30, 6,607.80 and 4,291.80

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Solution

The fourth proportional to 4,413.30, 6,607.80 and 4,291.80 is: 6,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.30 : 6,607.80 = 4,291.80 : x
  2. Step 2: Convert to fraction form
    4,413.30/6,607.80 = 4,291.80/x
  3. Step 3: Cross multiply
    4,413.30x = 6,607.80 × 4,291.80
  4. Step 4: Simplify right side
    4,413.30x = 28,359,356.04
  5. Step 5: Solve for x
    x = 28,359,356.04/4,413.30
  6. Step 6: Final answer
    x = 6,425.88

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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.