Home / 3,422.36-4,722.96-1,930.36

Finding the Fourth Proportional to 3,422.36, 4,722.96 and 1,930.36

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Solution

The fourth proportional to 3,422.36, 4,722.96 and 1,930.36 is: 2,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.36 : 4,722.96 = 1,930.36 : x
  2. Step 2: Convert to fraction form
    3,422.36/4,722.96 = 1,930.36/x
  3. Step 3: Cross multiply
    3,422.36x = 4,722.96 × 1,930.36
  4. Step 4: Simplify right side
    3,422.36x = 9,117,013.07
  5. Step 5: Solve for x
    x = 9,117,013.07/3,422.36
  6. Step 6: Final answer
    x = 2,663.96

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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.