Home / 4,986.71-6,881.64-2,718.05

Finding the Fourth Proportional to 4,986.71, 6,881.64 and 2,718.05

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Solution

The fourth proportional to 4,986.71, 6,881.64 and 2,718.05 is: 3,750.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.71 : 6,881.64 = 2,718.05 : x
  2. Step 2: Convert to fraction form
    4,986.71/6,881.64 = 2,718.05/x
  3. Step 3: Cross multiply
    4,986.71x = 6,881.64 × 2,718.05
  4. Step 4: Simplify right side
    4,986.71x = 18,704,593.60
  5. Step 5: Solve for x
    x = 18,704,593.60/4,986.71
  6. Step 6: Final answer
    x = 3,750.89

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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.