Home / 2,579.90-3,847.18-2,556.50

Finding the Fourth Proportional to 2,579.90, 3,847.18 and 2,556.50

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Solution

The fourth proportional to 2,579.90, 3,847.18 and 2,556.50 is: 3,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.90 : 3,847.18 = 2,556.50 : x
  2. Step 2: Convert to fraction form
    2,579.90/3,847.18 = 2,556.50/x
  3. Step 3: Cross multiply
    2,579.90x = 3,847.18 × 2,556.50
  4. Step 4: Simplify right side
    2,579.90x = 9,835,315.67
  5. Step 5: Solve for x
    x = 9,835,315.67/2,579.90
  6. Step 6: Final answer
    x = 3,812.29

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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.