Home / 2,758.75-4,140.18-2,140.92

Finding the Fourth Proportional to 2,758.75, 4,140.18 and 2,140.92

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Solution

The fourth proportional to 2,758.75, 4,140.18 and 2,140.92 is: 3,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.75 : 4,140.18 = 2,140.92 : x
  2. Step 2: Convert to fraction form
    2,758.75/4,140.18 = 2,140.92/x
  3. Step 3: Cross multiply
    2,758.75x = 4,140.18 × 2,140.92
  4. Step 4: Simplify right side
    2,758.75x = 8,863,794.17
  5. Step 5: Solve for x
    x = 8,863,794.17/2,758.75
  6. Step 6: Final answer
    x = 3,212.98

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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.