Home / 1,415.29-2,122.93-441.39

Finding the Fourth Proportional to 1,415.29, 2,122.93 and 441.39

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Solution

The fourth proportional to 1,415.29, 2,122.93 and 441.39 is: 662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.29 : 2,122.93 = 441.39 : x
  2. Step 2: Convert to fraction form
    1,415.29/2,122.93 = 441.39/x
  3. Step 3: Cross multiply
    1,415.29x = 2,122.93 × 441.39
  4. Step 4: Simplify right side
    1,415.29x = 937,032.11
  5. Step 5: Solve for x
    x = 937,032.11/1,415.29
  6. Step 6: Final answer
    x = 662.08

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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.