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Finding the Fourth Proportional to 3,342.94, 4,986.14 and 3,150.22

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Solution

The fourth proportional to 3,342.94, 4,986.14 and 3,150.22 is: 4,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.94 : 4,986.14 = 3,150.22 : x
  2. Step 2: Convert to fraction form
    3,342.94/4,986.14 = 3,150.22/x
  3. Step 3: Cross multiply
    3,342.94x = 4,986.14 × 3,150.22
  4. Step 4: Simplify right side
    3,342.94x = 15,707,437.95
  5. Step 5: Solve for x
    x = 15,707,437.95/3,342.94
  6. Step 6: Final answer
    x = 4,698.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.