Home / 3,146.45-4,342.01-1,749.20

Finding the Fourth Proportional to 3,146.45, 4,342.01 and 1,749.20

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Solution

The fourth proportional to 3,146.45, 4,342.01 and 1,749.20 is: 2,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.45 : 4,342.01 = 1,749.20 : x
  2. Step 2: Convert to fraction form
    3,146.45/4,342.01 = 1,749.20/x
  3. Step 3: Cross multiply
    3,146.45x = 4,342.01 × 1,749.20
  4. Step 4: Simplify right side
    3,146.45x = 7,595,013.44
  5. Step 5: Solve for x
    x = 7,595,013.44/3,146.45
  6. Step 6: Final answer
    x = 2,413.84

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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.