Home / 2,341.26-3,512.25-780.73

Finding the Fourth Proportional to 2,341.26, 3,512.25 and 780.73

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Solution

The fourth proportional to 2,341.26, 3,512.25 and 780.73 is: 1,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.26 : 3,512.25 = 780.73 : x
  2. Step 2: Convert to fraction form
    2,341.26/3,512.25 = 780.73/x
  3. Step 3: Cross multiply
    2,341.26x = 3,512.25 × 780.73
  4. Step 4: Simplify right side
    2,341.26x = 2,742,110.16
  5. Step 5: Solve for x
    x = 2,742,110.16/2,341.26
  6. Step 6: Final answer
    x = 1,171.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.