Home / 3,486.60-5,222.62-2,619.72

Finding the Fourth Proportional to 3,486.60, 5,222.62 and 2,619.72

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Solution

The fourth proportional to 3,486.60, 5,222.62 and 2,619.72 is: 3,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.60 : 5,222.62 = 2,619.72 : x
  2. Step 2: Convert to fraction form
    3,486.60/5,222.62 = 2,619.72/x
  3. Step 3: Cross multiply
    3,486.60x = 5,222.62 × 2,619.72
  4. Step 4: Simplify right side
    3,486.60x = 13,681,802.07
  5. Step 5: Solve for x
    x = 13,681,802.07/3,486.60
  6. Step 6: Final answer
    x = 3,924.11

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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.