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Finding the Fourth Proportional to 2,270.95, 3,133.10 and 1,485.45

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Solution

The fourth proportional to 2,270.95, 3,133.10 and 1,485.45 is: 2,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.95 : 3,133.10 = 1,485.45 : x
  2. Step 2: Convert to fraction form
    2,270.95/3,133.10 = 1,485.45/x
  3. Step 3: Cross multiply
    2,270.95x = 3,133.10 × 1,485.45
  4. Step 4: Simplify right side
    2,270.95x = 4,654,063.40
  5. Step 5: Solve for x
    x = 4,654,063.40/2,270.95
  6. Step 6: Final answer
    x = 2,049.39

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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.