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Finding the Fourth Proportional to 3,555.88, 5,334.02 and 959.02

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Solution

The fourth proportional to 3,555.88, 5,334.02 and 959.02 is: 1,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.88 : 5,334.02 = 959.02 : x
  2. Step 2: Convert to fraction form
    3,555.88/5,334.02 = 959.02/x
  3. Step 3: Cross multiply
    3,555.88x = 5,334.02 × 959.02
  4. Step 4: Simplify right side
    3,555.88x = 5,115,431.86
  5. Step 5: Solve for x
    x = 5,115,431.86/3,555.88
  6. Step 6: Final answer
    x = 1,438.58

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1.5x scale

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.