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Finding the Fourth Proportional to 953.52, 1,315.43 and 575.57

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Solution

The fourth proportional to 953.52, 1,315.43 and 575.57 is: 794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.52 : 1,315.43 = 575.57 : x
  2. Step 2: Convert to fraction form
    953.52/1,315.43 = 575.57/x
  3. Step 3: Cross multiply
    953.52x = 1,315.43 × 575.57
  4. Step 4: Simplify right side
    953.52x = 757,112.59
  5. Step 5: Solve for x
    x = 757,112.59/953.52
  6. Step 6: Final answer
    x = 794.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.