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Finding the Fourth Proportional to 797.90, 1,195.14 and 581

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Solution

The fourth proportional to 797.90, 1,195.14 and 581 is: 870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.90 : 1,195.14 = 581 : x
  2. Step 2: Convert to fraction form
    797.90/1,195.14 = 581/x
  3. Step 3: Cross multiply
    797.90x = 1,195.14 × 581
  4. Step 4: Simplify right side
    797.90x = 694,376.34
  5. Step 5: Solve for x
    x = 694,376.34/797.90
  6. Step 6: Final answer
    x = 870.25

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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.