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Finding the Fourth Proportional to 4,987.27, 7,480.89 and 1,477.55

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Solution

The fourth proportional to 4,987.27, 7,480.89 and 1,477.55 is: 2,216.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.27 : 7,480.89 = 1,477.55 : x
  2. Step 2: Convert to fraction form
    4,987.27/7,480.89 = 1,477.55/x
  3. Step 3: Cross multiply
    4,987.27x = 7,480.89 × 1,477.55
  4. Step 4: Simplify right side
    4,987.27x = 11,053,413.26
  5. Step 5: Solve for x
    x = 11,053,413.26/4,987.27
  6. Step 6: Final answer
    x = 2,216.32

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1.5x scale

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.