Home / 6,128.72-9,194.26-1,968.40

Finding the Fourth Proportional to 6,128.72, 9,194.26 and 1,968.40

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Solution

The fourth proportional to 6,128.72, 9,194.26 and 1,968.40 is: 2,952.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.72 : 9,194.26 = 1,968.40 : x
  2. Step 2: Convert to fraction form
    6,128.72/9,194.26 = 1,968.40/x
  3. Step 3: Cross multiply
    6,128.72x = 9,194.26 × 1,968.40
  4. Step 4: Simplify right side
    6,128.72x = 18,097,981.38
  5. Step 5: Solve for x
    x = 18,097,981.38/6,128.72
  6. Step 6: Final answer
    x = 2,952.98

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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.