Home / 3,211.58-4,785.64-2,884.56

Finding the Fourth Proportional to 3,211.58, 4,785.64 and 2,884.56

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Solution

The fourth proportional to 3,211.58, 4,785.64 and 2,884.56 is: 4,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.58 : 4,785.64 = 2,884.56 : x
  2. Step 2: Convert to fraction form
    3,211.58/4,785.64 = 2,884.56/x
  3. Step 3: Cross multiply
    3,211.58x = 4,785.64 × 2,884.56
  4. Step 4: Simplify right side
    3,211.58x = 13,804,465.72
  5. Step 5: Solve for x
    x = 13,804,465.72/3,211.58
  6. Step 6: Final answer
    x = 4,298.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.