Home / 1,816.28-2,505.73-1,317.82

Finding the Fourth Proportional to 1,816.28, 2,505.73 and 1,317.82

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Solution

The fourth proportional to 1,816.28, 2,505.73 and 1,317.82 is: 1,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.28 : 2,505.73 = 1,317.82 : x
  2. Step 2: Convert to fraction form
    1,816.28/2,505.73 = 1,317.82/x
  3. Step 3: Cross multiply
    1,816.28x = 2,505.73 × 1,317.82
  4. Step 4: Simplify right side
    1,816.28x = 3,302,101.11
  5. Step 5: Solve for x
    x = 3,302,101.11/1,816.28
  6. Step 6: Final answer
    x = 1,818.06

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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.