Home / 4,170.42-6,255.72-1,979.37

Finding the Fourth Proportional to 4,170.42, 6,255.72 and 1,979.37

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Solution

The fourth proportional to 4,170.42, 6,255.72 and 1,979.37 is: 2,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.42 : 6,255.72 = 1,979.37 : x
  2. Step 2: Convert to fraction form
    4,170.42/6,255.72 = 1,979.37/x
  3. Step 3: Cross multiply
    4,170.42x = 6,255.72 × 1,979.37
  4. Step 4: Simplify right side
    4,170.42x = 12,382,384.50
  5. Step 5: Solve for x
    x = 12,382,384.50/4,170.42
  6. Step 6: Final answer
    x = 2,969.10

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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.