Home / 3,423.31-5,130.86-1,571.87

Finding the Fourth Proportional to 3,423.31, 5,130.86 and 1,571.87

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Solution

The fourth proportional to 3,423.31, 5,130.86 and 1,571.87 is: 2,355.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.31 : 5,130.86 = 1,571.87 : x
  2. Step 2: Convert to fraction form
    3,423.31/5,130.86 = 1,571.87/x
  3. Step 3: Cross multiply
    3,423.31x = 5,130.86 × 1,571.87
  4. Step 4: Simplify right side
    3,423.31x = 8,065,049.88
  5. Step 5: Solve for x
    x = 8,065,049.88/3,423.31
  6. Step 6: Final answer
    x = 2,355.92

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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.