Home / 3,025.57-4,538.40-945.49

Finding the Fourth Proportional to 3,025.57, 4,538.40 and 945.49

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Solution

The fourth proportional to 3,025.57, 4,538.40 and 945.49 is: 1,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.57 : 4,538.40 = 945.49 : x
  2. Step 2: Convert to fraction form
    3,025.57/4,538.40 = 945.49/x
  3. Step 3: Cross multiply
    3,025.57x = 4,538.40 × 945.49
  4. Step 4: Simplify right side
    3,025.57x = 4,291,011.82
  5. Step 5: Solve for x
    x = 4,291,011.82/3,025.57
  6. Step 6: Final answer
    x = 1,418.25

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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.