Home / 1,687.24-2,328.44-941.30

Finding the Fourth Proportional to 1,687.24, 2,328.44 and 941.30

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Solution

The fourth proportional to 1,687.24, 2,328.44 and 941.30 is: 1,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.24 : 2,328.44 = 941.30 : x
  2. Step 2: Convert to fraction form
    1,687.24/2,328.44 = 941.30/x
  3. Step 3: Cross multiply
    1,687.24x = 2,328.44 × 941.30
  4. Step 4: Simplify right side
    1,687.24x = 2,191,744.22
  5. Step 5: Solve for x
    x = 2,191,744.22/1,687.24
  6. Step 6: Final answer
    x = 1,299.01

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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.