Home / 3,422.01-4,722.05-2,078.36

Finding the Fourth Proportional to 3,422.01, 4,722.05 and 2,078.36

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Solution

The fourth proportional to 3,422.01, 4,722.05 and 2,078.36 is: 2,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.01 : 4,722.05 = 2,078.36 : x
  2. Step 2: Convert to fraction form
    3,422.01/4,722.05 = 2,078.36/x
  3. Step 3: Cross multiply
    3,422.01x = 4,722.05 × 2,078.36
  4. Step 4: Simplify right side
    3,422.01x = 9,814,094.16
  5. Step 5: Solve for x
    x = 9,814,094.16/3,422.01
  6. Step 6: Final answer
    x = 2,867.93

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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.