Home / 5,515.22-8,274.20-1,619.64

Finding the Fourth Proportional to 5,515.22, 8,274.20 and 1,619.64

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Solution

The fourth proportional to 5,515.22, 8,274.20 and 1,619.64 is: 2,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.22 : 8,274.20 = 1,619.64 : x
  2. Step 2: Convert to fraction form
    5,515.22/8,274.20 = 1,619.64/x
  3. Step 3: Cross multiply
    5,515.22x = 8,274.20 × 1,619.64
  4. Step 4: Simplify right side
    5,515.22x = 13,401,225.29
  5. Step 5: Solve for x
    x = 13,401,225.29/5,515.22
  6. Step 6: Final answer
    x = 2,429.86

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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.