Home / 1,415.24-2,123.13-441.11

Finding the Fourth Proportional to 1,415.24, 2,123.13 and 441.11

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Solution

The fourth proportional to 1,415.24, 2,123.13 and 441.11 is: 661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.24 : 2,123.13 = 441.11 : x
  2. Step 2: Convert to fraction form
    1,415.24/2,123.13 = 441.11/x
  3. Step 3: Cross multiply
    1,415.24x = 2,123.13 × 441.11
  4. Step 4: Simplify right side
    1,415.24x = 936,523.26
  5. Step 5: Solve for x
    x = 936,523.26/1,415.24
  6. Step 6: Final answer
    x = 661.74

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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.