Home / 3,218.20-4,826.58-1,485.16

Finding the Fourth Proportional to 3,218.20, 4,826.58 and 1,485.16

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Solution

The fourth proportional to 3,218.20, 4,826.58 and 1,485.16 is: 2,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.20 : 4,826.58 = 1,485.16 : x
  2. Step 2: Convert to fraction form
    3,218.20/4,826.58 = 1,485.16/x
  3. Step 3: Cross multiply
    3,218.20x = 4,826.58 × 1,485.16
  4. Step 4: Simplify right side
    3,218.20x = 7,168,243.55
  5. Step 5: Solve for x
    x = 7,168,243.55/3,218.20
  6. Step 6: Final answer
    x = 2,227.41

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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.