Home / 3,395.08-4,685.58-1,997.80

Finding the Fourth Proportional to 3,395.08, 4,685.58 and 1,997.80

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Solution

The fourth proportional to 3,395.08, 4,685.58 and 1,997.80 is: 2,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.08 : 4,685.58 = 1,997.80 : x
  2. Step 2: Convert to fraction form
    3,395.08/4,685.58 = 1,997.80/x
  3. Step 3: Cross multiply
    3,395.08x = 4,685.58 × 1,997.80
  4. Step 4: Simplify right side
    3,395.08x = 9,360,851.72
  5. Step 5: Solve for x
    x = 9,360,851.72/3,395.08
  6. Step 6: Final answer
    x = 2,757.18

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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.