Home / 4,126.21-6,189.60-1,661.05

Finding the Fourth Proportional to 4,126.21, 6,189.60 and 1,661.05

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Solution

The fourth proportional to 4,126.21, 6,189.60 and 1,661.05 is: 2,491.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.21 : 6,189.60 = 1,661.05 : x
  2. Step 2: Convert to fraction form
    4,126.21/6,189.60 = 1,661.05/x
  3. Step 3: Cross multiply
    4,126.21x = 6,189.60 × 1,661.05
  4. Step 4: Simplify right side
    4,126.21x = 10,281,235.08
  5. Step 5: Solve for x
    x = 10,281,235.08/4,126.21
  6. Step 6: Final answer
    x = 2,491.69

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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.