Home / 4,128.40-6,197.40-2,486.80

Finding the Fourth Proportional to 4,128.40, 6,197.40 and 2,486.80

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Solution

The fourth proportional to 4,128.40, 6,197.40 and 2,486.80 is: 3,733.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.40 : 6,197.40 = 2,486.80 : x
  2. Step 2: Convert to fraction form
    4,128.40/6,197.40 = 2,486.80/x
  3. Step 3: Cross multiply
    4,128.40x = 6,197.40 × 2,486.80
  4. Step 4: Simplify right side
    4,128.40x = 15,411,694.32
  5. Step 5: Solve for x
    x = 15,411,694.32/4,128.40
  6. Step 6: Final answer
    x = 3,733.09

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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.