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Finding the Fourth Proportional to 953.28, 1,429.38 and 375.48

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Solution

The fourth proportional to 953.28, 1,429.38 and 375.48 is: 563.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.28 : 1,429.38 = 375.48 : x
  2. Step 2: Convert to fraction form
    953.28/1,429.38 = 375.48/x
  3. Step 3: Cross multiply
    953.28x = 1,429.38 × 375.48
  4. Step 4: Simplify right side
    953.28x = 536,703.60
  5. Step 5: Solve for x
    x = 536,703.60/953.28
  6. Step 6: Final answer
    x = 563.01

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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.