Home / 1,621.56-2,237.70-923.04

Finding the Fourth Proportional to 1,621.56, 2,237.70 and 923.04

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Solution

The fourth proportional to 1,621.56, 2,237.70 and 923.04 is: 1,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.56 : 2,237.70 = 923.04 : x
  2. Step 2: Convert to fraction form
    1,621.56/2,237.70 = 923.04/x
  3. Step 3: Cross multiply
    1,621.56x = 2,237.70 × 923.04
  4. Step 4: Simplify right side
    1,621.56x = 2,065,486.61
  5. Step 5: Solve for x
    x = 2,065,486.61/1,621.56
  6. Step 6: Final answer
    x = 1,273.77

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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.