Home / 5,434.80-8,150.60-2,146.80

Finding the Fourth Proportional to 5,434.80, 8,150.60 and 2,146.80

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Solution

The fourth proportional to 5,434.80, 8,150.60 and 2,146.80 is: 3,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.80 : 8,150.60 = 2,146.80 : x
  2. Step 2: Convert to fraction form
    5,434.80/8,150.60 = 2,146.80/x
  3. Step 3: Cross multiply
    5,434.80x = 8,150.60 × 2,146.80
  4. Step 4: Simplify right side
    5,434.80x = 17,497,708.08
  5. Step 5: Solve for x
    x = 17,497,708.08/5,434.80
  6. Step 6: Final answer
    x = 3,219.57

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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.