Home / 5,515.89-8,268.36-3,662.40

Finding the Fourth Proportional to 5,515.89, 8,268.36 and 3,662.40

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Solution

The fourth proportional to 5,515.89, 8,268.36 and 3,662.40 is: 5,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.89 : 8,268.36 = 3,662.40 : x
  2. Step 2: Convert to fraction form
    5,515.89/8,268.36 = 3,662.40/x
  3. Step 3: Cross multiply
    5,515.89x = 8,268.36 × 3,662.40
  4. Step 4: Simplify right side
    5,515.89x = 30,282,041.66
  5. Step 5: Solve for x
    x = 30,282,041.66/5,515.89
  6. Step 6: Final answer
    x = 5,489.96

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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.