Home / 3,678.17-5,518.08-1,213.25

Finding the Fourth Proportional to 3,678.17, 5,518.08 and 1,213.25

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Solution

The fourth proportional to 3,678.17, 5,518.08 and 1,213.25 is: 1,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.17 : 5,518.08 = 1,213.25 : x
  2. Step 2: Convert to fraction form
    3,678.17/5,518.08 = 1,213.25/x
  3. Step 3: Cross multiply
    3,678.17x = 5,518.08 × 1,213.25
  4. Step 4: Simplify right side
    3,678.17x = 6,694,782.97
  5. Step 5: Solve for x
    x = 6,694,782.97/3,678.17
  6. Step 6: Final answer
    x = 1,820.14

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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.