Home / 3,147.28-4,720.93-1,413.88

Finding the Fourth Proportional to 3,147.28, 4,720.93 and 1,413.88

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Solution

The fourth proportional to 3,147.28, 4,720.93 and 1,413.88 is: 2,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.28 : 4,720.93 = 1,413.88 : x
  2. Step 2: Convert to fraction form
    3,147.28/4,720.93 = 1,413.88/x
  3. Step 3: Cross multiply
    3,147.28x = 4,720.93 × 1,413.88
  4. Step 4: Simplify right side
    3,147.28x = 6,674,813.17
  5. Step 5: Solve for x
    x = 6,674,813.17/3,147.28
  6. Step 6: Final answer
    x = 2,120.82

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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.