Home / 1,628.44-2,246.30-1,131.50

Finding the Fourth Proportional to 1,628.44, 2,246.30 and 1,131.50

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Solution

The fourth proportional to 1,628.44, 2,246.30 and 1,131.50 is: 1,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.44 : 2,246.30 = 1,131.50 : x
  2. Step 2: Convert to fraction form
    1,628.44/2,246.30 = 1,131.50/x
  3. Step 3: Cross multiply
    1,628.44x = 2,246.30 × 1,131.50
  4. Step 4: Simplify right side
    1,628.44x = 2,541,688.45
  5. Step 5: Solve for x
    x = 2,541,688.45/1,628.44
  6. Step 6: Final answer
    x = 1,560.81

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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.