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Finding the Fourth Proportional to 573.13, 786.13 and 552.61

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Solution

The fourth proportional to 573.13, 786.13 and 552.61 is: 757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.13 : 786.13 = 552.61 : x
  2. Step 2: Convert to fraction form
    573.13/786.13 = 552.61/x
  3. Step 3: Cross multiply
    573.13x = 786.13 × 552.61
  4. Step 4: Simplify right side
    573.13x = 434,423.30
  5. Step 5: Solve for x
    x = 434,423.30/573.13
  6. Step 6: Final answer
    x = 757.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.