Home / 1,376.24-2,063.80-892.40

Finding the Fourth Proportional to 1,376.24, 2,063.80 and 892.40

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Solution

The fourth proportional to 1,376.24, 2,063.80 and 892.40 is: 1,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.24 : 2,063.80 = 892.40 : x
  2. Step 2: Convert to fraction form
    1,376.24/2,063.80 = 892.40/x
  3. Step 3: Cross multiply
    1,376.24x = 2,063.80 × 892.40
  4. Step 4: Simplify right side
    1,376.24x = 1,841,735.12
  5. Step 5: Solve for x
    x = 1,841,735.12/1,376.24
  6. Step 6: Final answer
    x = 1,338.24

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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.