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Finding the Fourth Proportional to 637.76, 952.02 and 551.63

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Solution

The fourth proportional to 637.76, 952.02 and 551.63 is: 823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.76 : 952.02 = 551.63 : x
  2. Step 2: Convert to fraction form
    637.76/952.02 = 551.63/x
  3. Step 3: Cross multiply
    637.76x = 952.02 × 551.63
  4. Step 4: Simplify right side
    637.76x = 525,162.79
  5. Step 5: Solve for x
    x = 525,162.79/637.76
  6. Step 6: Final answer
    x = 823.45

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.