Home / 3,776.23-5,209.74-2,783.87

Finding the Fourth Proportional to 3,776.23, 5,209.74 and 2,783.87

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Solution

The fourth proportional to 3,776.23, 5,209.74 and 2,783.87 is: 3,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.23 : 5,209.74 = 2,783.87 : x
  2. Step 2: Convert to fraction form
    3,776.23/5,209.74 = 2,783.87/x
  3. Step 3: Cross multiply
    3,776.23x = 5,209.74 × 2,783.87
  4. Step 4: Simplify right side
    3,776.23x = 14,503,212.85
  5. Step 5: Solve for x
    x = 14,503,212.85/3,776.23
  6. Step 6: Final answer
    x = 3,840.66

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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.