Home / 7,821.48-11,730.98-2,556.45

Finding the Fourth Proportional to 7,821.48, 11,730.98 and 2,556.45

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Solution

The fourth proportional to 7,821.48, 11,730.98 and 2,556.45 is: 3,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.48 : 11,730.98 = 2,556.45 : x
  2. Step 2: Convert to fraction form
    7,821.48/11,730.98 = 2,556.45/x
  3. Step 3: Cross multiply
    7,821.48x = 11,730.98 × 2,556.45
  4. Step 4: Simplify right side
    7,821.48x = 29,989,651.04
  5. Step 5: Solve for x
    x = 29,989,651.04/7,821.48
  6. Step 6: Final answer
    x = 3,834.27

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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.