Home / 4,128.24-6,190.52-1,316.55

Finding the Fourth Proportional to 4,128.24, 6,190.52 and 1,316.55

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Solution

The fourth proportional to 4,128.24, 6,190.52 and 1,316.55 is: 1,974.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.24 : 6,190.52 = 1,316.55 : x
  2. Step 2: Convert to fraction form
    4,128.24/6,190.52 = 1,316.55/x
  3. Step 3: Cross multiply
    4,128.24x = 6,190.52 × 1,316.55
  4. Step 4: Simplify right side
    4,128.24x = 8,150,127.73
  5. Step 5: Solve for x
    x = 8,150,127.73/4,128.24
  6. Step 6: Final answer
    x = 1,974.24

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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.