Home / 5,413.64-8,120.46-1,518.08

Finding the Fourth Proportional to 5,413.64, 8,120.46 and 1,518.08

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Solution

The fourth proportional to 5,413.64, 8,120.46 and 1,518.08 is: 2,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.64 : 8,120.46 = 1,518.08 : x
  2. Step 2: Convert to fraction form
    5,413.64/8,120.46 = 1,518.08/x
  3. Step 3: Cross multiply
    5,413.64x = 8,120.46 × 1,518.08
  4. Step 4: Simplify right side
    5,413.64x = 12,327,507.92
  5. Step 5: Solve for x
    x = 12,327,507.92/5,413.64
  6. Step 6: Final answer
    x = 2,277.12

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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.