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Finding the Fourth Proportional to 693.35, 956.69 and 651.87

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Solution

The fourth proportional to 693.35, 956.69 and 651.87 is: 899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.35 : 956.69 = 651.87 : x
  2. Step 2: Convert to fraction form
    693.35/956.69 = 651.87/x
  3. Step 3: Cross multiply
    693.35x = 956.69 × 651.87
  4. Step 4: Simplify right side
    693.35x = 623,634.25
  5. Step 5: Solve for x
    x = 623,634.25/693.35
  6. Step 6: Final answer
    x = 899.46

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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.