Home / 3,629.40-5,446.84-2,518.20

Finding the Fourth Proportional to 3,629.40, 5,446.84 and 2,518.20

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Solution

The fourth proportional to 3,629.40, 5,446.84 and 2,518.20 is: 3,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.40 : 5,446.84 = 2,518.20 : x
  2. Step 2: Convert to fraction form
    3,629.40/5,446.84 = 2,518.20/x
  3. Step 3: Cross multiply
    3,629.40x = 5,446.84 × 2,518.20
  4. Step 4: Simplify right side
    3,629.40x = 13,716,232.49
  5. Step 5: Solve for x
    x = 13,716,232.49/3,629.40
  6. Step 6: Final answer
    x = 3,779.20

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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.