Home / 4,126.40-6,175.20-3,780.80

Finding the Fourth Proportional to 4,126.40, 6,175.20 and 3,780.80

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Solution

The fourth proportional to 4,126.40, 6,175.20 and 3,780.80 is: 5,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.40 : 6,175.20 = 3,780.80 : x
  2. Step 2: Convert to fraction form
    4,126.40/6,175.20 = 3,780.80/x
  3. Step 3: Cross multiply
    4,126.40x = 6,175.20 × 3,780.80
  4. Step 4: Simplify right side
    4,126.40x = 23,347,196.16
  5. Step 5: Solve for x
    x = 23,347,196.16/4,126.40
  6. Step 6: Final answer
    x = 5,658.01

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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.