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Finding the Fourth Proportional to 897.43, 1,344.93 and 775.93

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Solution

The fourth proportional to 897.43, 1,344.93 and 775.93 is: 1,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.43 : 1,344.93 = 775.93 : x
  2. Step 2: Convert to fraction form
    897.43/1,344.93 = 775.93/x
  3. Step 3: Cross multiply
    897.43x = 1,344.93 × 775.93
  4. Step 4: Simplify right side
    897.43x = 1,043,571.53
  5. Step 5: Solve for x
    x = 1,043,571.53/897.43
  6. Step 6: Final answer
    x = 1,162.84

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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.