Home / 1,663.09-2,295.07-917.03

Finding the Fourth Proportional to 1,663.09, 2,295.07 and 917.03

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Solution

The fourth proportional to 1,663.09, 2,295.07 and 917.03 is: 1,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.09 : 2,295.07 = 917.03 : x
  2. Step 2: Convert to fraction form
    1,663.09/2,295.07 = 917.03/x
  3. Step 3: Cross multiply
    1,663.09x = 2,295.07 × 917.03
  4. Step 4: Simplify right side
    1,663.09x = 2,104,651.49
  5. Step 5: Solve for x
    x = 2,104,651.49/1,663.09
  6. Step 6: Final answer
    x = 1,265.51

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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.