Home / 1,458.90-2,012.97-1,408.89

Finding the Fourth Proportional to 1,458.90, 2,012.97 and 1,408.89

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Solution

The fourth proportional to 1,458.90, 2,012.97 and 1,408.89 is: 1,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.90 : 2,012.97 = 1,408.89 : x
  2. Step 2: Convert to fraction form
    1,458.90/2,012.97 = 1,408.89/x
  3. Step 3: Cross multiply
    1,458.90x = 2,012.97 × 1,408.89
  4. Step 4: Simplify right side
    1,458.90x = 2,836,053.30
  5. Step 5: Solve for x
    x = 2,836,053.30/1,458.90
  6. Step 6: Final answer
    x = 1,943.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.