Home / 4,087.26-6,128.46-1,490.40

Finding the Fourth Proportional to 4,087.26, 6,128.46 and 1,490.40

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Solution

The fourth proportional to 4,087.26, 6,128.46 and 1,490.40 is: 2,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.26 : 6,128.46 = 1,490.40 : x
  2. Step 2: Convert to fraction form
    4,087.26/6,128.46 = 1,490.40/x
  3. Step 3: Cross multiply
    4,087.26x = 6,128.46 × 1,490.40
  4. Step 4: Simplify right side
    4,087.26x = 9,133,856.78
  5. Step 5: Solve for x
    x = 9,133,856.78/4,087.26
  6. Step 6: Final answer
    x = 2,234.71

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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.