Home / 1,663.43-2,295.68-917.54

Finding the Fourth Proportional to 1,663.43, 2,295.68 and 917.54

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Solution

The fourth proportional to 1,663.43, 2,295.68 and 917.54 is: 1,266.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.43 : 2,295.68 = 917.54 : x
  2. Step 2: Convert to fraction form
    1,663.43/2,295.68 = 917.54/x
  3. Step 3: Cross multiply
    1,663.43x = 2,295.68 × 917.54
  4. Step 4: Simplify right side
    1,663.43x = 2,106,362.16
  5. Step 5: Solve for x
    x = 2,106,362.16/1,663.43
  6. Step 6: Final answer
    x = 1,266.27

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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.