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Finding the Fourth Proportional to 637.41, 953.56 and 551.67

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Solution

The fourth proportional to 637.41, 953.56 and 551.67 is: 825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.41 : 953.56 = 551.67 : x
  2. Step 2: Convert to fraction form
    637.41/953.56 = 551.67/x
  3. Step 3: Cross multiply
    637.41x = 953.56 × 551.67
  4. Step 4: Simplify right side
    637.41x = 526,050.45
  5. Step 5: Solve for x
    x = 526,050.45/637.41
  6. Step 6: Final answer
    x = 825.29

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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.