Home / 1,586.58-2,188.99-923.19

Finding the Fourth Proportional to 1,586.58, 2,188.99 and 923.19

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Solution

The fourth proportional to 1,586.58, 2,188.99 and 923.19 is: 1,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.58 : 2,188.99 = 923.19 : x
  2. Step 2: Convert to fraction form
    1,586.58/2,188.99 = 923.19/x
  3. Step 3: Cross multiply
    1,586.58x = 2,188.99 × 923.19
  4. Step 4: Simplify right side
    1,586.58x = 2,020,853.68
  5. Step 5: Solve for x
    x = 2,020,853.68/1,586.58
  6. Step 6: Final answer
    x = 1,273.72

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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.