Home / 3,017.32-4,163.70-1,690.81

Finding the Fourth Proportional to 3,017.32, 4,163.70 and 1,690.81

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Solution

The fourth proportional to 3,017.32, 4,163.70 and 1,690.81 is: 2,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.32 : 4,163.70 = 1,690.81 : x
  2. Step 2: Convert to fraction form
    3,017.32/4,163.70 = 1,690.81/x
  3. Step 3: Cross multiply
    3,017.32x = 4,163.70 × 1,690.81
  4. Step 4: Simplify right side
    3,017.32x = 7,040,025.60
  5. Step 5: Solve for x
    x = 7,040,025.60/3,017.32
  6. Step 6: Final answer
    x = 2,333.20

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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.