Home / 4,191.78-6,287.56-1,071.79

Finding the Fourth Proportional to 4,191.78, 6,287.56 and 1,071.79

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Solution

The fourth proportional to 4,191.78, 6,287.56 and 1,071.79 is: 1,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.78 : 6,287.56 = 1,071.79 : x
  2. Step 2: Convert to fraction form
    4,191.78/6,287.56 = 1,071.79/x
  3. Step 3: Cross multiply
    4,191.78x = 6,287.56 × 1,071.79
  4. Step 4: Simplify right side
    4,191.78x = 6,738,943.93
  5. Step 5: Solve for x
    x = 6,738,943.93/4,191.78
  6. Step 6: Final answer
    x = 1,607.66

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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.