Home / 2,861.92-3,950.40-1,743.58

Finding the Fourth Proportional to 2,861.92, 3,950.40 and 1,743.58

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Solution

The fourth proportional to 2,861.92, 3,950.40 and 1,743.58 is: 2,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.92 : 3,950.40 = 1,743.58 : x
  2. Step 2: Convert to fraction form
    2,861.92/3,950.40 = 1,743.58/x
  3. Step 3: Cross multiply
    2,861.92x = 3,950.40 × 1,743.58
  4. Step 4: Simplify right side
    2,861.92x = 6,887,838.43
  5. Step 5: Solve for x
    x = 6,887,838.43/2,861.92
  6. Step 6: Final answer
    x = 2,406.72

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1.5x scale

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.