Home / 3,306.75-4,561.73-1,980.19

Finding the Fourth Proportional to 3,306.75, 4,561.73 and 1,980.19

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Solution

The fourth proportional to 3,306.75, 4,561.73 and 1,980.19 is: 2,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.75 : 4,561.73 = 1,980.19 : x
  2. Step 2: Convert to fraction form
    3,306.75/4,561.73 = 1,980.19/x
  3. Step 3: Cross multiply
    3,306.75x = 4,561.73 × 1,980.19
  4. Step 4: Simplify right side
    3,306.75x = 9,033,095.36
  5. Step 5: Solve for x
    x = 9,033,095.36/3,306.75
  6. Step 6: Final answer
    x = 2,731.72

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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.