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Finding the Fourth Proportional to 4,647.76, 6,413.78 and 2,551.88

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Solution

The fourth proportional to 4,647.76, 6,413.78 and 2,551.88 is: 3,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.76 : 6,413.78 = 2,551.88 : x
  2. Step 2: Convert to fraction form
    4,647.76/6,413.78 = 2,551.88/x
  3. Step 3: Cross multiply
    4,647.76x = 6,413.78 × 2,551.88
  4. Step 4: Simplify right side
    4,647.76x = 16,367,196.91
  5. Step 5: Solve for x
    x = 16,367,196.91/4,647.76
  6. Step 6: Final answer
    x = 3,521.52

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1.5x scale

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.