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Finding the Fourth Proportional to 1,672.23, 2,507.44 and 575.70

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Solution

The fourth proportional to 1,672.23, 2,507.44 and 575.70 is: 863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.23 : 2,507.44 = 575.70 : x
  2. Step 2: Convert to fraction form
    1,672.23/2,507.44 = 575.70/x
  3. Step 3: Cross multiply
    1,672.23x = 2,507.44 × 575.70
  4. Step 4: Simplify right side
    1,672.23x = 1,443,533.21
  5. Step 5: Solve for x
    x = 1,443,533.21/1,672.23
  6. Step 6: Final answer
    x = 863.24

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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.