Home / 3,393.45-4,681.23-2,116.28

Finding the Fourth Proportional to 3,393.45, 4,681.23 and 2,116.28

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Solution

The fourth proportional to 3,393.45, 4,681.23 and 2,116.28 is: 2,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.45 : 4,681.23 = 2,116.28 : x
  2. Step 2: Convert to fraction form
    3,393.45/4,681.23 = 2,116.28/x
  3. Step 3: Cross multiply
    3,393.45x = 4,681.23 × 2,116.28
  4. Step 4: Simplify right side
    3,393.45x = 9,906,793.42
  5. Step 5: Solve for x
    x = 9,906,793.42/3,393.45
  6. Step 6: Final answer
    x = 2,919.39

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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.