Home / 3,306.62-4,561.56-1,980.07

Finding the Fourth Proportional to 3,306.62, 4,561.56 and 1,980.07

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Solution

The fourth proportional to 3,306.62, 4,561.56 and 1,980.07 is: 2,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.62 : 4,561.56 = 1,980.07 : x
  2. Step 2: Convert to fraction form
    3,306.62/4,561.56 = 1,980.07/x
  3. Step 3: Cross multiply
    3,306.62x = 4,561.56 × 1,980.07
  4. Step 4: Simplify right side
    3,306.62x = 9,032,208.11
  5. Step 5: Solve for x
    x = 9,032,208.11/3,306.62
  6. Step 6: Final answer
    x = 2,731.55

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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.