Home / 3,473.06-4,790.81-1,980.69

Finding the Fourth Proportional to 3,473.06, 4,790.81 and 1,980.69

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Solution

The fourth proportional to 3,473.06, 4,790.81 and 1,980.69 is: 2,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.06 : 4,790.81 = 1,980.69 : x
  2. Step 2: Convert to fraction form
    3,473.06/4,790.81 = 1,980.69/x
  3. Step 3: Cross multiply
    3,473.06x = 4,790.81 × 1,980.69
  4. Step 4: Simplify right side
    3,473.06x = 9,489,099.56
  5. Step 5: Solve for x
    x = 9,489,099.56/3,473.06
  6. Step 6: Final answer
    x = 2,732.21

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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.