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Finding the Fourth Proportional to 5,989.42, 8,981.12 and 3,491.41

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Solution

The fourth proportional to 5,989.42, 8,981.12 and 3,491.41 is: 5,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989.42 : 8,981.12 = 3,491.41 : x
  2. Step 2: Convert to fraction form
    5,989.42/8,981.12 = 3,491.41/x
  3. Step 3: Cross multiply
    5,989.42x = 8,981.12 × 3,491.41
  4. Step 4: Simplify right side
    5,989.42x = 31,356,754.72
  5. Step 5: Solve for x
    x = 31,356,754.72/5,989.42
  6. Step 6: Final answer
    x = 5,235.36

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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.