Home / 6,413.60-8,851.21-3,581.53

Finding the Fourth Proportional to 6,413.60, 8,851.21 and 3,581.53

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Solution

The fourth proportional to 6,413.60, 8,851.21 and 3,581.53 is: 4,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.60 : 8,851.21 = 3,581.53 : x
  2. Step 2: Convert to fraction form
    6,413.60/8,851.21 = 3,581.53/x
  3. Step 3: Cross multiply
    6,413.60x = 8,851.21 × 3,581.53
  4. Step 4: Simplify right side
    6,413.60x = 31,700,874.15
  5. Step 5: Solve for x
    x = 31,700,874.15/6,413.60
  6. Step 6: Final answer
    x = 4,942.76

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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.