Home / 3,852.12-5,775.63-1,979.19

Finding the Fourth Proportional to 3,852.12, 5,775.63 and 1,979.19

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Solution

The fourth proportional to 3,852.12, 5,775.63 and 1,979.19 is: 2,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.12 : 5,775.63 = 1,979.19 : x
  2. Step 2: Convert to fraction form
    3,852.12/5,775.63 = 1,979.19/x
  3. Step 3: Cross multiply
    3,852.12x = 5,775.63 × 1,979.19
  4. Step 4: Simplify right side
    3,852.12x = 11,431,069.14
  5. Step 5: Solve for x
    x = 11,431,069.14/3,852.12
  6. Step 6: Final answer
    x = 2,967.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.