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Finding the Fourth Proportional to 1,672.99, 2,507.99 and 633.04

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Solution

The fourth proportional to 1,672.99, 2,507.99 and 633.04 is: 948.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.99 : 2,507.99 = 633.04 : x
  2. Step 2: Convert to fraction form
    1,672.99/2,507.99 = 633.04/x
  3. Step 3: Cross multiply
    1,672.99x = 2,507.99 × 633.04
  4. Step 4: Simplify right side
    1,672.99x = 1,587,648.55
  5. Step 5: Solve for x
    x = 1,587,648.55/1,672.99
  6. Step 6: Final answer
    x = 948.99

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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.