Home / 3,178.26-4,767.39-1,330.65

Finding the Fourth Proportional to 3,178.26, 4,767.39 and 1,330.65

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Solution

The fourth proportional to 3,178.26, 4,767.39 and 1,330.65 is: 1,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.26 : 4,767.39 = 1,330.65 : x
  2. Step 2: Convert to fraction form
    3,178.26/4,767.39 = 1,330.65/x
  3. Step 3: Cross multiply
    3,178.26x = 4,767.39 × 1,330.65
  4. Step 4: Simplify right side
    3,178.26x = 6,343,727.50
  5. Step 5: Solve for x
    x = 6,343,727.50/3,178.26
  6. Step 6: Final answer
    x = 1,995.98

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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.