Home / 4,986.65-6,881.31-2,748.47

Finding the Fourth Proportional to 4,986.65, 6,881.31 and 2,748.47

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Solution

The fourth proportional to 4,986.65, 6,881.31 and 2,748.47 is: 3,792.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.65 : 6,881.31 = 2,748.47 : x
  2. Step 2: Convert to fraction form
    4,986.65/6,881.31 = 2,748.47/x
  3. Step 3: Cross multiply
    4,986.65x = 6,881.31 × 2,748.47
  4. Step 4: Simplify right side
    4,986.65x = 18,913,074.10
  5. Step 5: Solve for x
    x = 18,913,074.10/4,986.65
  6. Step 6: Final answer
    x = 3,792.74

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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.