Home / 4,087.28-6,128.68-1,894.80

Finding the Fourth Proportional to 4,087.28, 6,128.68 and 1,894.80

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Solution

The fourth proportional to 4,087.28, 6,128.68 and 1,894.80 is: 2,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.28 : 6,128.68 = 1,894.80 : x
  2. Step 2: Convert to fraction form
    4,087.28/6,128.68 = 1,894.80/x
  3. Step 3: Cross multiply
    4,087.28x = 6,128.68 × 1,894.80
  4. Step 4: Simplify right side
    4,087.28x = 11,612,622.86
  5. Step 5: Solve for x
    x = 11,612,622.86/4,087.28
  6. Step 6: Final answer
    x = 2,841.16

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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.