Home / 1,541.41-2,311.43-445.51

Finding the Fourth Proportional to 1,541.41, 2,311.43 and 445.51

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Solution

The fourth proportional to 1,541.41, 2,311.43 and 445.51 is: 668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.41 : 2,311.43 = 445.51 : x
  2. Step 2: Convert to fraction form
    1,541.41/2,311.43 = 445.51/x
  3. Step 3: Cross multiply
    1,541.41x = 2,311.43 × 445.51
  4. Step 4: Simplify right side
    1,541.41x = 1,029,765.84
  5. Step 5: Solve for x
    x = 1,029,765.84/1,541.41
  6. Step 6: Final answer
    x = 668.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.