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Finding the Fourth Proportional to 3,552.76, 5,329.94 and 1,087.76

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Solution

The fourth proportional to 3,552.76, 5,329.94 and 1,087.76 is: 1,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.76 : 5,329.94 = 1,087.76 : x
  2. Step 2: Convert to fraction form
    3,552.76/5,329.94 = 1,087.76/x
  3. Step 3: Cross multiply
    3,552.76x = 5,329.94 × 1,087.76
  4. Step 4: Simplify right side
    3,552.76x = 5,797,703.42
  5. Step 5: Solve for x
    x = 5,797,703.42/3,552.76
  6. Step 6: Final answer
    x = 1,631.89

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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.