Home / 2,868.93-3,960.44-2,205.55

Finding the Fourth Proportional to 2,868.93, 3,960.44 and 2,205.55

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Solution

The fourth proportional to 2,868.93, 3,960.44 and 2,205.55 is: 3,044.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.93 : 3,960.44 = 2,205.55 : x
  2. Step 2: Convert to fraction form
    2,868.93/3,960.44 = 2,205.55/x
  3. Step 3: Cross multiply
    2,868.93x = 3,960.44 × 2,205.55
  4. Step 4: Simplify right side
    2,868.93x = 8,734,937.41
  5. Step 5: Solve for x
    x = 8,734,937.41/2,868.93
  6. Step 6: Final answer
    x = 3,044.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.