Home / 7,820.80-10,792.56-4,283.92

Finding the Fourth Proportional to 7,820.80, 10,792.56 and 4,283.92

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Solution

The fourth proportional to 7,820.80, 10,792.56 and 4,283.92 is: 5,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.80 : 10,792.56 = 4,283.92 : x
  2. Step 2: Convert to fraction form
    7,820.80/10,792.56 = 4,283.92/x
  3. Step 3: Cross multiply
    7,820.80x = 10,792.56 × 4,283.92
  4. Step 4: Simplify right side
    7,820.80x = 46,234,463.64
  5. Step 5: Solve for x
    x = 46,234,463.64/7,820.80
  6. Step 6: Final answer
    x = 5,911.73

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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.