Home / 1,440.94-2,148.99-1,415.02

Finding the Fourth Proportional to 1,440.94, 2,148.99 and 1,415.02

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Solution

The fourth proportional to 1,440.94, 2,148.99 and 1,415.02 is: 2,110.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.94 : 2,148.99 = 1,415.02 : x
  2. Step 2: Convert to fraction form
    1,440.94/2,148.99 = 1,415.02/x
  3. Step 3: Cross multiply
    1,440.94x = 2,148.99 × 1,415.02
  4. Step 4: Simplify right side
    1,440.94x = 3,040,863.83
  5. Step 5: Solve for x
    x = 3,040,863.83/1,440.94
  6. Step 6: Final answer
    x = 2,110.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.