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Finding the Fourth Proportional to 4,986.51, 6,881 and 2,748.25

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Solution

The fourth proportional to 4,986.51, 6,881 and 2,748.25 is: 3,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.51 : 6,881 = 2,748.25 : x
  2. Step 2: Convert to fraction form
    4,986.51/6,881 = 2,748.25/x
  3. Step 3: Cross multiply
    4,986.51x = 6,881 × 2,748.25
  4. Step 4: Simplify right side
    4,986.51x = 18,910,708.25
  5. Step 5: Solve for x
    x = 18,910,708.25/4,986.51
  6. Step 6: Final answer
    x = 3,792.37

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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.