Home / 1,260.27-1,887.70-1,225.71

Finding the Fourth Proportional to 1,260.27, 1,887.70 and 1,225.71

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Solution

The fourth proportional to 1,260.27, 1,887.70 and 1,225.71 is: 1,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.27 : 1,887.70 = 1,225.71 : x
  2. Step 2: Convert to fraction form
    1,260.27/1,887.70 = 1,225.71/x
  3. Step 3: Cross multiply
    1,260.27x = 1,887.70 × 1,225.71
  4. Step 4: Simplify right side
    1,260.27x = 2,313,772.77
  5. Step 5: Solve for x
    x = 2,313,772.77/1,260.27
  6. Step 6: Final answer
    x = 1,835.93

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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.