Home / 2,391.21-3,586.83-725.34

Finding the Fourth Proportional to 2,391.21, 3,586.83 and 725.34

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Solution

The fourth proportional to 2,391.21, 3,586.83 and 725.34 is: 1,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.21 : 3,586.83 = 725.34 : x
  2. Step 2: Convert to fraction form
    2,391.21/3,586.83 = 725.34/x
  3. Step 3: Cross multiply
    2,391.21x = 3,586.83 × 725.34
  4. Step 4: Simplify right side
    2,391.21x = 2,601,671.27
  5. Step 5: Solve for x
    x = 2,601,671.27/2,391.21
  6. Step 6: Final answer
    x = 1,088.01

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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.