Home / 3,025.40-4,538.33-945.47

Finding the Fourth Proportional to 3,025.40, 4,538.33 and 945.47

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Solution

The fourth proportional to 3,025.40, 4,538.33 and 945.47 is: 1,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.40 : 4,538.33 = 945.47 : x
  2. Step 2: Convert to fraction form
    3,025.40/4,538.33 = 945.47/x
  3. Step 3: Cross multiply
    3,025.40x = 4,538.33 × 945.47
  4. Step 4: Simplify right side
    3,025.40x = 4,290,865.03
  5. Step 5: Solve for x
    x = 4,290,865.03/3,025.40
  6. Step 6: Final answer
    x = 1,418.28

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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.