Home / 7,982.19-11,973.33-2,788.02

Finding the Fourth Proportional to 7,982.19, 11,973.33 and 2,788.02

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Solution

The fourth proportional to 7,982.19, 11,973.33 and 2,788.02 is: 4,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.19 : 11,973.33 = 2,788.02 : x
  2. Step 2: Convert to fraction form
    7,982.19/11,973.33 = 2,788.02/x
  3. Step 3: Cross multiply
    7,982.19x = 11,973.33 × 2,788.02
  4. Step 4: Simplify right side
    7,982.19x = 33,381,883.51
  5. Step 5: Solve for x
    x = 33,381,883.51/7,982.19
  6. Step 6: Final answer
    x = 4,182.05

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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.