Home / 3,009.28-4,511.76-1,276.96

Finding the Fourth Proportional to 3,009.28, 4,511.76 and 1,276.96

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Solution

The fourth proportional to 3,009.28, 4,511.76 and 1,276.96 is: 1,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.28 : 4,511.76 = 1,276.96 : x
  2. Step 2: Convert to fraction form
    3,009.28/4,511.76 = 1,276.96/x
  3. Step 3: Cross multiply
    3,009.28x = 4,511.76 × 1,276.96
  4. Step 4: Simplify right side
    3,009.28x = 5,761,337.05
  5. Step 5: Solve for x
    x = 5,761,337.05/3,009.28
  6. Step 6: Final answer
    x = 1,914.52

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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.