Home / 2,890.67-4,315.08-2,540.36

Finding the Fourth Proportional to 2,890.67, 4,315.08 and 2,540.36

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Solution

The fourth proportional to 2,890.67, 4,315.08 and 2,540.36 is: 3,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.67 : 4,315.08 = 2,540.36 : x
  2. Step 2: Convert to fraction form
    2,890.67/4,315.08 = 2,540.36/x
  3. Step 3: Cross multiply
    2,890.67x = 4,315.08 × 2,540.36
  4. Step 4: Simplify right side
    2,890.67x = 10,961,835.05
  5. Step 5: Solve for x
    x = 10,961,835.05/2,890.67
  6. Step 6: Final answer
    x = 3,792.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.