Home / 3,087.09-4,626.32-1,439.55

Finding the Fourth Proportional to 3,087.09, 4,626.32 and 1,439.55

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Solution

The fourth proportional to 3,087.09, 4,626.32 and 1,439.55 is: 2,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.09 : 4,626.32 = 1,439.55 : x
  2. Step 2: Convert to fraction form
    3,087.09/4,626.32 = 1,439.55/x
  3. Step 3: Cross multiply
    3,087.09x = 4,626.32 × 1,439.55
  4. Step 4: Simplify right side
    3,087.09x = 6,659,811.76
  5. Step 5: Solve for x
    x = 6,659,811.76/3,087.09
  6. Step 6: Final answer
    x = 2,157.31

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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.