Home / 5,515.40-8,254.20-3,325.70

Finding the Fourth Proportional to 5,515.40, 8,254.20 and 3,325.70

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Solution

The fourth proportional to 5,515.40, 8,254.20 and 3,325.70 is: 4,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.40 : 8,254.20 = 3,325.70 : x
  2. Step 2: Convert to fraction form
    5,515.40/8,254.20 = 3,325.70/x
  3. Step 3: Cross multiply
    5,515.40x = 8,254.20 × 3,325.70
  4. Step 4: Simplify right side
    5,515.40x = 27,450,992.94
  5. Step 5: Solve for x
    x = 27,450,992.94/5,515.40
  6. Step 6: Final answer
    x = 4,977.15

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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.