Home / 4,986.39-6,881.36-3,072.63

Finding the Fourth Proportional to 4,986.39, 6,881.36 and 3,072.63

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Solution

The fourth proportional to 4,986.39, 6,881.36 and 3,072.63 is: 4,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.39 : 6,881.36 = 3,072.63 : x
  2. Step 2: Convert to fraction form
    4,986.39/6,881.36 = 3,072.63/x
  3. Step 3: Cross multiply
    4,986.39x = 6,881.36 × 3,072.63
  4. Step 4: Simplify right side
    4,986.39x = 21,143,873.18
  5. Step 5: Solve for x
    x = 21,143,873.18/4,986.39
  6. Step 6: Final answer
    x = 4,240.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.