Home / 3,679.83-5,520.57-1,214.55

Finding the Fourth Proportional to 3,679.83, 5,520.57 and 1,214.55

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Solution

The fourth proportional to 3,679.83, 5,520.57 and 1,214.55 is: 1,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.83 : 5,520.57 = 1,214.55 : x
  2. Step 2: Convert to fraction form
    3,679.83/5,520.57 = 1,214.55/x
  3. Step 3: Cross multiply
    3,679.83x = 5,520.57 × 1,214.55
  4. Step 4: Simplify right side
    3,679.83x = 6,705,008.29
  5. Step 5: Solve for x
    x = 6,705,008.29/3,679.83
  6. Step 6: Final answer
    x = 1,822.10

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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.