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Finding the Fourth Proportional to 637.45, 957.28 and 379.08

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Solution

The fourth proportional to 637.45, 957.28 and 379.08 is: 569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.45 : 957.28 = 379.08 : x
  2. Step 2: Convert to fraction form
    637.45/957.28 = 379.08/x
  3. Step 3: Cross multiply
    637.45x = 957.28 × 379.08
  4. Step 4: Simplify right side
    637.45x = 362,879.02
  5. Step 5: Solve for x
    x = 362,879.02/637.45
  6. Step 6: Final answer
    x = 569.27

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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.