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Finding the Fourth Proportional to 3,089.53, 4,634.34 and 898.21

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Solution

The fourth proportional to 3,089.53, 4,634.34 and 898.21 is: 1,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.53 : 4,634.34 = 898.21 : x
  2. Step 2: Convert to fraction form
    3,089.53/4,634.34 = 898.21/x
  3. Step 3: Cross multiply
    3,089.53x = 4,634.34 × 898.21
  4. Step 4: Simplify right side
    3,089.53x = 4,162,610.53
  5. Step 5: Solve for x
    x = 4,162,610.53/3,089.53
  6. Step 6: Final answer
    x = 1,347.33

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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.