Home / 3,438.56-5,152.43-2,660.49

Finding the Fourth Proportional to 3,438.56, 5,152.43 and 2,660.49

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Solution

The fourth proportional to 3,438.56, 5,152.43 and 2,660.49 is: 3,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.56 : 5,152.43 = 2,660.49 : x
  2. Step 2: Convert to fraction form
    3,438.56/5,152.43 = 2,660.49/x
  3. Step 3: Cross multiply
    3,438.56x = 5,152.43 × 2,660.49
  4. Step 4: Simplify right side
    3,438.56x = 13,707,975.19
  5. Step 5: Solve for x
    x = 13,707,975.19/3,438.56
  6. Step 6: Final answer
    x = 3,986.55

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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.