Home / 3,835.63-5,280.11-2,839.03

Finding the Fourth Proportional to 3,835.63, 5,280.11 and 2,839.03

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Solution

The fourth proportional to 3,835.63, 5,280.11 and 2,839.03 is: 3,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.63 : 5,280.11 = 2,839.03 : x
  2. Step 2: Convert to fraction form
    3,835.63/5,280.11 = 2,839.03/x
  3. Step 3: Cross multiply
    3,835.63x = 5,280.11 × 2,839.03
  4. Step 4: Simplify right side
    3,835.63x = 14,990,390.69
  5. Step 5: Solve for x
    x = 14,990,390.69/3,835.63
  6. Step 6: Final answer
    x = 3,908.20

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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.