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Finding the Fourth Proportional to 835.58, 1,151.04 and 710.84

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Solution

The fourth proportional to 835.58, 1,151.04 and 710.84 is: 979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.58 : 1,151.04 = 710.84 : x
  2. Step 2: Convert to fraction form
    835.58/1,151.04 = 710.84/x
  3. Step 3: Cross multiply
    835.58x = 1,151.04 × 710.84
  4. Step 4: Simplify right side
    835.58x = 818,205.27
  5. Step 5: Solve for x
    x = 818,205.27/835.58
  6. Step 6: Final answer
    x = 979.21

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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.