Home / 2,386.44-3,291.33-1,680.62

Finding the Fourth Proportional to 2,386.44, 3,291.33 and 1,680.62

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Solution

The fourth proportional to 2,386.44, 3,291.33 and 1,680.62 is: 2,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.44 : 3,291.33 = 1,680.62 : x
  2. Step 2: Convert to fraction form
    2,386.44/3,291.33 = 1,680.62/x
  3. Step 3: Cross multiply
    2,386.44x = 3,291.33 × 1,680.62
  4. Step 4: Simplify right side
    2,386.44x = 5,531,475.02
  5. Step 5: Solve for x
    x = 5,531,475.02/2,386.44
  6. Step 6: Final answer
    x = 2,317.88

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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.