Home / 2,792.61-4,186.76-1,330.83

Finding the Fourth Proportional to 2,792.61, 4,186.76 and 1,330.83

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Solution

The fourth proportional to 2,792.61, 4,186.76 and 1,330.83 is: 1,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.61 : 4,186.76 = 1,330.83 : x
  2. Step 2: Convert to fraction form
    2,792.61/4,186.76 = 1,330.83/x
  3. Step 3: Cross multiply
    2,792.61x = 4,186.76 × 1,330.83
  4. Step 4: Simplify right side
    2,792.61x = 5,571,859.16
  5. Step 5: Solve for x
    x = 5,571,859.16/2,792.61
  6. Step 6: Final answer
    x = 1,995.22

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1.5x scale

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.