Home / 3,685.81-5,515.73-2,299.80

Finding the Fourth Proportional to 3,685.81, 5,515.73 and 2,299.80

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Solution

The fourth proportional to 3,685.81, 5,515.73 and 2,299.80 is: 3,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.81 : 5,515.73 = 2,299.80 : x
  2. Step 2: Convert to fraction form
    3,685.81/5,515.73 = 2,299.80/x
  3. Step 3: Cross multiply
    3,685.81x = 5,515.73 × 2,299.80
  4. Step 4: Simplify right side
    3,685.81x = 12,685,081.60
  5. Step 5: Solve for x
    x = 12,685,081.60/3,685.81
  6. Step 6: Final answer
    x = 3,441.60

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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.