Home / 3,813.55-5,262.67-2,134.95

Finding the Fourth Proportional to 3,813.55, 5,262.67 and 2,134.95

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Solution

The fourth proportional to 3,813.55, 5,262.67 and 2,134.95 is: 2,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.55 : 5,262.67 = 2,134.95 : x
  2. Step 2: Convert to fraction form
    3,813.55/5,262.67 = 2,134.95/x
  3. Step 3: Cross multiply
    3,813.55x = 5,262.67 × 2,134.95
  4. Step 4: Simplify right side
    3,813.55x = 11,235,520.25
  5. Step 5: Solve for x
    x = 11,235,520.25/3,813.55
  6. Step 6: Final answer
    x = 2,946.21

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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.