Home / 3,331.34-4,991.53-1,138.87

Finding the Fourth Proportional to 3,331.34, 4,991.53 and 1,138.87

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Solution

The fourth proportional to 3,331.34, 4,991.53 and 1,138.87 is: 1,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.34 : 4,991.53 = 1,138.87 : x
  2. Step 2: Convert to fraction form
    3,331.34/4,991.53 = 1,138.87/x
  3. Step 3: Cross multiply
    3,331.34x = 4,991.53 × 1,138.87
  4. Step 4: Simplify right side
    3,331.34x = 5,684,678.81
  5. Step 5: Solve for x
    x = 5,684,678.81/3,331.34
  6. Step 6: Final answer
    x = 1,706.43

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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.