Home / 1,511.37-2,266.57-485.13

Finding the Fourth Proportional to 1,511.37, 2,266.57 and 485.13

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Solution

The fourth proportional to 1,511.37, 2,266.57 and 485.13 is: 727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.37 : 2,266.57 = 485.13 : x
  2. Step 2: Convert to fraction form
    1,511.37/2,266.57 = 485.13/x
  3. Step 3: Cross multiply
    1,511.37x = 2,266.57 × 485.13
  4. Step 4: Simplify right side
    1,511.37x = 1,099,568.56
  5. Step 5: Solve for x
    x = 1,099,568.56/1,511.37
  6. Step 6: Final answer
    x = 727.53

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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.