Home / 1,448.32-1,996.80-1,350.40

Finding the Fourth Proportional to 1,448.32, 1,996.80 and 1,350.40

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Solution

The fourth proportional to 1,448.32, 1,996.80 and 1,350.40 is: 1,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.32 : 1,996.80 = 1,350.40 : x
  2. Step 2: Convert to fraction form
    1,448.32/1,996.80 = 1,350.40/x
  3. Step 3: Cross multiply
    1,448.32x = 1,996.80 × 1,350.40
  4. Step 4: Simplify right side
    1,448.32x = 2,696,478.72
  5. Step 5: Solve for x
    x = 2,696,478.72/1,448.32
  6. Step 6: Final answer
    x = 1,861.80

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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.