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Finding the Fourth Proportional to 3,009.56, 4,511.90 and 1,255.89

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Solution

The fourth proportional to 3,009.56, 4,511.90 and 1,255.89 is: 1,882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.56 : 4,511.90 = 1,255.89 : x
  2. Step 2: Convert to fraction form
    3,009.56/4,511.90 = 1,255.89/x
  3. Step 3: Cross multiply
    3,009.56x = 4,511.90 × 1,255.89
  4. Step 4: Simplify right side
    3,009.56x = 5,666,443.81
  5. Step 5: Solve for x
    x = 5,666,443.81/3,009.56
  6. Step 6: Final answer
    x = 1,882.82

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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.