Home / 1,424.90-2,137.33-1,180.91

Finding the Fourth Proportional to 1,424.90, 2,137.33 and 1,180.91

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Solution

The fourth proportional to 1,424.90, 2,137.33 and 1,180.91 is: 1,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.90 : 2,137.33 = 1,180.91 : x
  2. Step 2: Convert to fraction form
    1,424.90/2,137.33 = 1,180.91/x
  3. Step 3: Cross multiply
    1,424.90x = 2,137.33 × 1,180.91
  4. Step 4: Simplify right side
    1,424.90x = 2,523,988.47
  5. Step 5: Solve for x
    x = 2,523,988.47/1,424.90
  6. Step 6: Final answer
    x = 1,771.34

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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.