Home / 4,142.54-6,211.55-1,330.90

Finding the Fourth Proportional to 4,142.54, 6,211.55 and 1,330.90

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Solution

The fourth proportional to 4,142.54, 6,211.55 and 1,330.90 is: 1,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.54 : 6,211.55 = 1,330.90 : x
  2. Step 2: Convert to fraction form
    4,142.54/6,211.55 = 1,330.90/x
  3. Step 3: Cross multiply
    4,142.54x = 6,211.55 × 1,330.90
  4. Step 4: Simplify right side
    4,142.54x = 8,266,939.69
  5. Step 5: Solve for x
    x = 8,266,939.69/4,142.54
  6. Step 6: Final answer
    x = 1,995.62

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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.