Home / 3,330.09-4,990.86-2,816.16

Finding the Fourth Proportional to 3,330.09, 4,990.86 and 2,816.16

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Solution

The fourth proportional to 3,330.09, 4,990.86 and 2,816.16 is: 4,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.09 : 4,990.86 = 2,816.16 : x
  2. Step 2: Convert to fraction form
    3,330.09/4,990.86 = 2,816.16/x
  3. Step 3: Cross multiply
    3,330.09x = 4,990.86 × 2,816.16
  4. Step 4: Simplify right side
    3,330.09x = 14,055,060.30
  5. Step 5: Solve for x
    x = 14,055,060.30/3,330.09
  6. Step 6: Final answer
    x = 4,220.62

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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.