Home / 1,986.60-2,743.52-1,651.71

Finding the Fourth Proportional to 1,986.60, 2,743.52 and 1,651.71

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Solution

The fourth proportional to 1,986.60, 2,743.52 and 1,651.71 is: 2,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.60 : 2,743.52 = 1,651.71 : x
  2. Step 2: Convert to fraction form
    1,986.60/2,743.52 = 1,651.71/x
  3. Step 3: Cross multiply
    1,986.60x = 2,743.52 × 1,651.71
  4. Step 4: Simplify right side
    1,986.60x = 4,531,491.16
  5. Step 5: Solve for x
    x = 4,531,491.16/1,986.60
  6. Step 6: Final answer
    x = 2,281.03

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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.