Home / 3,396.06-4,686.83-1,980.18

Finding the Fourth Proportional to 3,396.06, 4,686.83 and 1,980.18

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Solution

The fourth proportional to 3,396.06, 4,686.83 and 1,980.18 is: 2,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.06 : 4,686.83 = 1,980.18 : x
  2. Step 2: Convert to fraction form
    3,396.06/4,686.83 = 1,980.18/x
  3. Step 3: Cross multiply
    3,396.06x = 4,686.83 × 1,980.18
  4. Step 4: Simplify right side
    3,396.06x = 9,280,764.55
  5. Step 5: Solve for x
    x = 9,280,764.55/3,396.06
  6. Step 6: Final answer
    x = 2,732.80

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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.