Home / 3,135.97-4,703.28-1,285.30

Finding the Fourth Proportional to 3,135.97, 4,703.28 and 1,285.30

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Solution

The fourth proportional to 3,135.97, 4,703.28 and 1,285.30 is: 1,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.97 : 4,703.28 = 1,285.30 : x
  2. Step 2: Convert to fraction form
    3,135.97/4,703.28 = 1,285.30/x
  3. Step 3: Cross multiply
    3,135.97x = 4,703.28 × 1,285.30
  4. Step 4: Simplify right side
    3,135.97x = 6,045,125.78
  5. Step 5: Solve for x
    x = 6,045,125.78/3,135.97
  6. Step 6: Final answer
    x = 1,927.67

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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.