Home / 3,179.08-4,768.64-1,423.64

Finding the Fourth Proportional to 3,179.08, 4,768.64 and 1,423.64

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Solution

The fourth proportional to 3,179.08, 4,768.64 and 1,423.64 is: 2,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.08 : 4,768.64 = 1,423.64 : x
  2. Step 2: Convert to fraction form
    3,179.08/4,768.64 = 1,423.64/x
  3. Step 3: Cross multiply
    3,179.08x = 4,768.64 × 1,423.64
  4. Step 4: Simplify right side
    3,179.08x = 6,788,826.65
  5. Step 5: Solve for x
    x = 6,788,826.65/3,179.08
  6. Step 6: Final answer
    x = 2,135.47

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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.