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Finding the Fourth Proportional to 835.37, 1,153.27 and 555.82

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Solution

The fourth proportional to 835.37, 1,153.27 and 555.82 is: 767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.37 : 1,153.27 = 555.82 : x
  2. Step 2: Convert to fraction form
    835.37/1,153.27 = 555.82/x
  3. Step 3: Cross multiply
    835.37x = 1,153.27 × 555.82
  4. Step 4: Simplify right side
    835.37x = 641,010.53
  5. Step 5: Solve for x
    x = 641,010.53/835.37
  6. Step 6: Final answer
    x = 767.34

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Half scale
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Double scale
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1.5x scale

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.