Home / 3,422.69-4,724-1,930.62

Finding the Fourth Proportional to 3,422.69, 4,724 and 1,930.62

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Solution

The fourth proportional to 3,422.69, 4,724 and 1,930.62 is: 2,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.69 : 4,724 = 1,930.62 : x
  2. Step 2: Convert to fraction form
    3,422.69/4,724 = 1,930.62/x
  3. Step 3: Cross multiply
    3,422.69x = 4,724 × 1,930.62
  4. Step 4: Simplify right side
    3,422.69x = 9,120,248.88
  5. Step 5: Solve for x
    x = 9,120,248.88/3,422.69
  6. Step 6: Final answer
    x = 2,664.64

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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.