Home / 5,159.25-7,736.88-1,871.55

Finding the Fourth Proportional to 5,159.25, 7,736.88 and 1,871.55

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Solution

The fourth proportional to 5,159.25, 7,736.88 and 1,871.55 is: 2,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.25 : 7,736.88 = 1,871.55 : x
  2. Step 2: Convert to fraction form
    5,159.25/7,736.88 = 1,871.55/x
  3. Step 3: Cross multiply
    5,159.25x = 7,736.88 × 1,871.55
  4. Step 4: Simplify right side
    5,159.25x = 14,479,957.76
  5. Step 5: Solve for x
    x = 14,479,957.76/5,159.25
  6. Step 6: Final answer
    x = 2,806.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.