Home / 3,881.08-5,818.18-2,782.68

Finding the Fourth Proportional to 3,881.08, 5,818.18 and 2,782.68

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Solution

The fourth proportional to 3,881.08, 5,818.18 and 2,782.68 is: 4,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.08 : 5,818.18 = 2,782.68 : x
  2. Step 2: Convert to fraction form
    3,881.08/5,818.18 = 2,782.68/x
  3. Step 3: Cross multiply
    3,881.08x = 5,818.18 × 2,782.68
  4. Step 4: Simplify right side
    3,881.08x = 16,190,133.12
  5. Step 5: Solve for x
    x = 16,190,133.12/3,881.08
  6. Step 6: Final answer
    x = 4,171.55

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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.