Home / 7,820.35-11,724.14-2,886.84

Finding the Fourth Proportional to 7,820.35, 11,724.14 and 2,886.84

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Solution

The fourth proportional to 7,820.35, 11,724.14 and 2,886.84 is: 4,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.35 : 11,724.14 = 2,886.84 : x
  2. Step 2: Convert to fraction form
    7,820.35/11,724.14 = 2,886.84/x
  3. Step 3: Cross multiply
    7,820.35x = 11,724.14 × 2,886.84
  4. Step 4: Simplify right side
    7,820.35x = 33,845,723.53
  5. Step 5: Solve for x
    x = 33,845,723.53/7,820.35
  6. Step 6: Final answer
    x = 4,327.91

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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.