Home / 2,558.50-3,838.65-1,260.88

Finding the Fourth Proportional to 2,558.50, 3,838.65 and 1,260.88

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Solution

The fourth proportional to 2,558.50, 3,838.65 and 1,260.88 is: 1,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.50 : 3,838.65 = 1,260.88 : x
  2. Step 2: Convert to fraction form
    2,558.50/3,838.65 = 1,260.88/x
  3. Step 3: Cross multiply
    2,558.50x = 3,838.65 × 1,260.88
  4. Step 4: Simplify right side
    2,558.50x = 4,840,077.01
  5. Step 5: Solve for x
    x = 4,840,077.01/2,558.50
  6. Step 6: Final answer
    x = 1,891.76

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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.