Home / 4,225.20-6,338.72-1,628.16

Finding the Fourth Proportional to 4,225.20, 6,338.72 and 1,628.16

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Solution

The fourth proportional to 4,225.20, 6,338.72 and 1,628.16 is: 2,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,225.20 : 6,338.72 = 1,628.16 : x
  2. Step 2: Convert to fraction form
    4,225.20/6,338.72 = 1,628.16/x
  3. Step 3: Cross multiply
    4,225.20x = 6,338.72 × 1,628.16
  4. Step 4: Simplify right side
    4,225.20x = 10,320,450.36
  5. Step 5: Solve for x
    x = 10,320,450.36/4,225.20
  6. Step 6: Final answer
    x = 2,442.59

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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.