Home / 3,883.80-5,347.26-3,618.84

Finding the Fourth Proportional to 3,883.80, 5,347.26 and 3,618.84

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Solution

The fourth proportional to 3,883.80, 5,347.26 and 3,618.84 is: 4,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.80 : 5,347.26 = 3,618.84 : x
  2. Step 2: Convert to fraction form
    3,883.80/5,347.26 = 3,618.84/x
  3. Step 3: Cross multiply
    3,883.80x = 5,347.26 × 3,618.84
  4. Step 4: Simplify right side
    3,883.80x = 19,350,878.38
  5. Step 5: Solve for x
    x = 19,350,878.38/3,883.80
  6. Step 6: Final answer
    x = 4,982.46

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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.