Home / 1,415.41-2,107.22-1,408.55

Finding the Fourth Proportional to 1,415.41, 2,107.22 and 1,408.55

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Solution

The fourth proportional to 1,415.41, 2,107.22 and 1,408.55 is: 2,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.41 : 2,107.22 = 1,408.55 : x
  2. Step 2: Convert to fraction form
    1,415.41/2,107.22 = 1,408.55/x
  3. Step 3: Cross multiply
    1,415.41x = 2,107.22 × 1,408.55
  4. Step 4: Simplify right side
    1,415.41x = 2,968,107.15
  5. Step 5: Solve for x
    x = 2,968,107.15/1,415.41
  6. Step 6: Final answer
    x = 2,097.00

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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.