Home / 3,396.33-4,687.01-1,980.11

Finding the Fourth Proportional to 3,396.33, 4,687.01 and 1,980.11

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Solution

The fourth proportional to 3,396.33, 4,687.01 and 1,980.11 is: 2,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.33 : 4,687.01 = 1,980.11 : x
  2. Step 2: Convert to fraction form
    3,396.33/4,687.01 = 1,980.11/x
  3. Step 3: Cross multiply
    3,396.33x = 4,687.01 × 1,980.11
  4. Step 4: Simplify right side
    3,396.33x = 9,280,762.04
  5. Step 5: Solve for x
    x = 9,280,762.04/3,396.33
  6. Step 6: Final answer
    x = 2,732.59

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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.