Home / 1,418.32-2,125.32-1,051.39

Finding the Fourth Proportional to 1,418.32, 2,125.32 and 1,051.39

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Solution

The fourth proportional to 1,418.32, 2,125.32 and 1,051.39 is: 1,575.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.32 : 2,125.32 = 1,051.39 : x
  2. Step 2: Convert to fraction form
    1,418.32/2,125.32 = 1,051.39/x
  3. Step 3: Cross multiply
    1,418.32x = 2,125.32 × 1,051.39
  4. Step 4: Simplify right side
    1,418.32x = 2,234,540.19
  5. Step 5: Solve for x
    x = 2,234,540.19/1,418.32
  6. Step 6: Final answer
    x = 1,575.48

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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.