Home / 1,626.21-2,243.61-917.96

Finding the Fourth Proportional to 1,626.21, 2,243.61 and 917.96

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Solution

The fourth proportional to 1,626.21, 2,243.61 and 917.96 is: 1,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.21 : 2,243.61 = 917.96 : x
  2. Step 2: Convert to fraction form
    1,626.21/2,243.61 = 917.96/x
  3. Step 3: Cross multiply
    1,626.21x = 2,243.61 × 917.96
  4. Step 4: Simplify right side
    1,626.21x = 2,059,549.84
  5. Step 5: Solve for x
    x = 2,059,549.84/1,626.21
  6. Step 6: Final answer
    x = 1,266.47

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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.