Home / 1,903.32-2,853.90-1,285.56

Finding the Fourth Proportional to 1,903.32, 2,853.90 and 1,285.56

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Solution

The fourth proportional to 1,903.32, 2,853.90 and 1,285.56 is: 1,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.32 : 2,853.90 = 1,285.56 : x
  2. Step 2: Convert to fraction form
    1,903.32/2,853.90 = 1,285.56/x
  3. Step 3: Cross multiply
    1,903.32x = 2,853.90 × 1,285.56
  4. Step 4: Simplify right side
    1,903.32x = 3,668,859.68
  5. Step 5: Solve for x
    x = 3,668,859.68/1,903.32
  6. Step 6: Final answer
    x = 1,927.61

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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.