Home / 5,413.72-8,115.06-2,490.40

Finding the Fourth Proportional to 5,413.72, 8,115.06 and 2,490.40

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Solution

The fourth proportional to 5,413.72, 8,115.06 and 2,490.40 is: 3,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.72 : 8,115.06 = 2,490.40 : x
  2. Step 2: Convert to fraction form
    5,413.72/8,115.06 = 2,490.40/x
  3. Step 3: Cross multiply
    5,413.72x = 8,115.06 × 2,490.40
  4. Step 4: Simplify right side
    5,413.72x = 20,209,745.42
  5. Step 5: Solve for x
    x = 20,209,745.42/5,413.72
  6. Step 6: Final answer
    x = 3,733.06

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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.