Home / 1,962.70-2,943.76-1,086.82

Finding the Fourth Proportional to 1,962.70, 2,943.76 and 1,086.82

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Solution

The fourth proportional to 1,962.70, 2,943.76 and 1,086.82 is: 1,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.70 : 2,943.76 = 1,086.82 : x
  2. Step 2: Convert to fraction form
    1,962.70/2,943.76 = 1,086.82/x
  3. Step 3: Cross multiply
    1,962.70x = 2,943.76 × 1,086.82
  4. Step 4: Simplify right side
    1,962.70x = 3,199,337.24
  5. Step 5: Solve for x
    x = 3,199,337.24/1,962.70
  6. Step 6: Final answer
    x = 1,630.07

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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.