Home / 7,821.22-10,792.88-4,283.76

Finding the Fourth Proportional to 7,821.22, 10,792.88 and 4,283.76

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Solution

The fourth proportional to 7,821.22, 10,792.88 and 4,283.76 is: 5,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.22 : 10,792.88 = 4,283.76 : x
  2. Step 2: Convert to fraction form
    7,821.22/10,792.88 = 4,283.76/x
  3. Step 3: Cross multiply
    7,821.22x = 10,792.88 × 4,283.76
  4. Step 4: Simplify right side
    7,821.22x = 46,234,107.63
  5. Step 5: Solve for x
    x = 46,234,107.63/7,821.22
  6. Step 6: Final answer
    x = 5,911.37

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1.5x scale

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.