Home / 1,415.18-2,122.96-441.30

Finding the Fourth Proportional to 1,415.18, 2,122.96 and 441.30

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Solution

The fourth proportional to 1,415.18, 2,122.96 and 441.30 is: 662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.18 : 2,122.96 = 441.30 : x
  2. Step 2: Convert to fraction form
    1,415.18/2,122.96 = 441.30/x
  3. Step 3: Cross multiply
    1,415.18x = 2,122.96 × 441.30
  4. Step 4: Simplify right side
    1,415.18x = 936,862.25
  5. Step 5: Solve for x
    x = 936,862.25/1,415.18
  6. Step 6: Final answer
    x = 662.01

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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.