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Finding the Fourth Proportional to 3,880.63, 5,818.51 and 2,826.82

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Solution

The fourth proportional to 3,880.63, 5,818.51 and 2,826.82 is: 4,238.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.63 : 5,818.51 = 2,826.82 : x
  2. Step 2: Convert to fraction form
    3,880.63/5,818.51 = 2,826.82/x
  3. Step 3: Cross multiply
    3,880.63x = 5,818.51 × 2,826.82
  4. Step 4: Simplify right side
    3,880.63x = 16,447,880.44
  5. Step 5: Solve for x
    x = 16,447,880.44/3,880.63
  6. Step 6: Final answer
    x = 4,238.46

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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.