Home / 3,125.72-4,688.34-1,276.34

Finding the Fourth Proportional to 3,125.72, 4,688.34 and 1,276.34

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Solution

The fourth proportional to 3,125.72, 4,688.34 and 1,276.34 is: 1,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.72 : 4,688.34 = 1,276.34 : x
  2. Step 2: Convert to fraction form
    3,125.72/4,688.34 = 1,276.34/x
  3. Step 3: Cross multiply
    3,125.72x = 4,688.34 × 1,276.34
  4. Step 4: Simplify right side
    3,125.72x = 5,983,915.88
  5. Step 5: Solve for x
    x = 5,983,915.88/3,125.72
  6. Step 6: Final answer
    x = 1,914.41

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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.