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Finding the Fourth Proportional to 671.82, 924.36 and 656.28

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Solution

The fourth proportional to 671.82, 924.36 and 656.28 is: 902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.82 : 924.36 = 656.28 : x
  2. Step 2: Convert to fraction form
    671.82/924.36 = 656.28/x
  3. Step 3: Cross multiply
    671.82x = 924.36 × 656.28
  4. Step 4: Simplify right side
    671.82x = 606,638.98
  5. Step 5: Solve for x
    x = 606,638.98/671.82
  6. Step 6: Final answer
    x = 902.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.