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Finding the Fourth Proportional to 636.95, 953.79 and 583.49

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Solution

The fourth proportional to 636.95, 953.79 and 583.49 is: 873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.95 : 953.79 = 583.49 : x
  2. Step 2: Convert to fraction form
    636.95/953.79 = 583.49/x
  3. Step 3: Cross multiply
    636.95x = 953.79 × 583.49
  4. Step 4: Simplify right side
    636.95x = 556,522.16
  5. Step 5: Solve for x
    x = 556,522.16/636.95
  6. Step 6: Final answer
    x = 873.74

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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.