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Finding the Fourth Proportional to 841.34, 1,161.14 and 468.35

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Solution

The fourth proportional to 841.34, 1,161.14 and 468.35 is: 646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.34 : 1,161.14 = 468.35 : x
  2. Step 2: Convert to fraction form
    841.34/1,161.14 = 468.35/x
  3. Step 3: Cross multiply
    841.34x = 1,161.14 × 468.35
  4. Step 4: Simplify right side
    841.34x = 543,819.92
  5. Step 5: Solve for x
    x = 543,819.92/841.34
  6. Step 6: Final answer
    x = 646.37

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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.