Home / 5,551.34-7,661.53-3,161.90

Finding the Fourth Proportional to 5,551.34, 7,661.53 and 3,161.90

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Solution

The fourth proportional to 5,551.34, 7,661.53 and 3,161.90 is: 4,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.34 : 7,661.53 = 3,161.90 : x
  2. Step 2: Convert to fraction form
    5,551.34/7,661.53 = 3,161.90/x
  3. Step 3: Cross multiply
    5,551.34x = 7,661.53 × 3,161.90
  4. Step 4: Simplify right side
    5,551.34x = 24,224,991.71
  5. Step 5: Solve for x
    x = 24,224,991.71/5,551.34
  6. Step 6: Final answer
    x = 4,363.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.