Home / 1,898.67-2,618.96-1,190.55

Finding the Fourth Proportional to 1,898.67, 2,618.96 and 1,190.55

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Solution

The fourth proportional to 1,898.67, 2,618.96 and 1,190.55 is: 1,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.67 : 2,618.96 = 1,190.55 : x
  2. Step 2: Convert to fraction form
    1,898.67/2,618.96 = 1,190.55/x
  3. Step 3: Cross multiply
    1,898.67x = 2,618.96 × 1,190.55
  4. Step 4: Simplify right side
    1,898.67x = 3,117,996.88
  5. Step 5: Solve for x
    x = 3,117,996.88/1,898.67
  6. Step 6: Final answer
    x = 1,642.20

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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.