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Finding the Fourth Proportional to 835.51, 1,251.88 and 591.55

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Solution

The fourth proportional to 835.51, 1,251.88 and 591.55 is: 886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.51 : 1,251.88 = 591.55 : x
  2. Step 2: Convert to fraction form
    835.51/1,251.88 = 591.55/x
  3. Step 3: Cross multiply
    835.51x = 1,251.88 × 591.55
  4. Step 4: Simplify right side
    835.51x = 740,549.61
  5. Step 5: Solve for x
    x = 740,549.61/835.51
  6. Step 6: Final answer
    x = 886.34

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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.