Home / 4,128.84-6,196.86-1,938.84

Finding the Fourth Proportional to 4,128.84, 6,196.86 and 1,938.84

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Solution

The fourth proportional to 4,128.84, 6,196.86 and 1,938.84 is: 2,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.84 : 6,196.86 = 1,938.84 : x
  2. Step 2: Convert to fraction form
    4,128.84/6,196.86 = 1,938.84/x
  3. Step 3: Cross multiply
    4,128.84x = 6,196.86 × 1,938.84
  4. Step 4: Simplify right side
    4,128.84x = 12,014,720.04
  5. Step 5: Solve for x
    x = 12,014,720.04/4,128.84
  6. Step 6: Final answer
    x = 2,909.95

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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.