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Finding the Fourth Proportional to 581.95, 801.72 and 481.95

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Solution

The fourth proportional to 581.95, 801.72 and 481.95 is: 663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.95 : 801.72 = 481.95 : x
  2. Step 2: Convert to fraction form
    581.95/801.72 = 481.95/x
  3. Step 3: Cross multiply
    581.95x = 801.72 × 481.95
  4. Step 4: Simplify right side
    581.95x = 386,388.95
  5. Step 5: Solve for x
    x = 386,388.95/581.95
  6. Step 6: Final answer
    x = 663.96

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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.