Home / 3,490.09-4,816.47-1,997.80

Finding the Fourth Proportional to 3,490.09, 4,816.47 and 1,997.80

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Solution

The fourth proportional to 3,490.09, 4,816.47 and 1,997.80 is: 2,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.09 : 4,816.47 = 1,997.80 : x
  2. Step 2: Convert to fraction form
    3,490.09/4,816.47 = 1,997.80/x
  3. Step 3: Cross multiply
    3,490.09x = 4,816.47 × 1,997.80
  4. Step 4: Simplify right side
    3,490.09x = 9,622,343.77
  5. Step 5: Solve for x
    x = 9,622,343.77/3,490.09
  6. Step 6: Final answer
    x = 2,757.05

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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.