Home / 1,628.74-2,247.92-1,039.46

Finding the Fourth Proportional to 1,628.74, 2,247.92 and 1,039.46

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Solution

The fourth proportional to 1,628.74, 2,247.92 and 1,039.46 is: 1,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.74 : 2,247.92 = 1,039.46 : x
  2. Step 2: Convert to fraction form
    1,628.74/2,247.92 = 1,039.46/x
  3. Step 3: Cross multiply
    1,628.74x = 2,247.92 × 1,039.46
  4. Step 4: Simplify right side
    1,628.74x = 2,336,622.92
  5. Step 5: Solve for x
    x = 2,336,622.92/1,628.74
  6. Step 6: Final answer
    x = 1,434.62

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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.