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Finding the Fourth Proportional to 882.77, 1,321.38 and 635.54

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Solution

The fourth proportional to 882.77, 1,321.38 and 635.54 is: 951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.77 : 1,321.38 = 635.54 : x
  2. Step 2: Convert to fraction form
    882.77/1,321.38 = 635.54/x
  3. Step 3: Cross multiply
    882.77x = 1,321.38 × 635.54
  4. Step 4: Simplify right side
    882.77x = 839,783.24
  5. Step 5: Solve for x
    x = 839,783.24/882.77
  6. Step 6: Final answer
    x = 951.31

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1.5x scale

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.