Home / 3,139.24-4,709.30-1,059.85

Finding the Fourth Proportional to 3,139.24, 4,709.30 and 1,059.85

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Solution

The fourth proportional to 3,139.24, 4,709.30 and 1,059.85 is: 1,589.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.24 : 4,709.30 = 1,059.85 : x
  2. Step 2: Convert to fraction form
    3,139.24/4,709.30 = 1,059.85/x
  3. Step 3: Cross multiply
    3,139.24x = 4,709.30 × 1,059.85
  4. Step 4: Simplify right side
    3,139.24x = 4,991,122.76
  5. Step 5: Solve for x
    x = 4,991,122.76/3,139.24
  6. Step 6: Final answer
    x = 1,589.91

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1.5x scale

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.