Home / 4,986.79-6,881.51-2,748.60

Finding the Fourth Proportional to 4,986.79, 6,881.51 and 2,748.60

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Solution

The fourth proportional to 4,986.79, 6,881.51 and 2,748.60 is: 3,792.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.79 : 6,881.51 = 2,748.60 : x
  2. Step 2: Convert to fraction form
    4,986.79/6,881.51 = 2,748.60/x
  3. Step 3: Cross multiply
    4,986.79x = 6,881.51 × 2,748.60
  4. Step 4: Simplify right side
    4,986.79x = 18,914,525.26
  5. Step 5: Solve for x
    x = 18,914,525.26/4,986.79
  6. Step 6: Final answer
    x = 3,792.93

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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.