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Finding the Fourth Proportional to 1,533.37, 2,300.60 and 667.75

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Solution

The fourth proportional to 1,533.37, 2,300.60 and 667.75 is: 1,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.37 : 2,300.60 = 667.75 : x
  2. Step 2: Convert to fraction form
    1,533.37/2,300.60 = 667.75/x
  3. Step 3: Cross multiply
    1,533.37x = 2,300.60 × 667.75
  4. Step 4: Simplify right side
    1,533.37x = 1,536,225.65
  5. Step 5: Solve for x
    x = 1,536,225.65/1,533.37
  6. Step 6: Final answer
    x = 1,001.86

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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.