Home / 1,102.20-1,642.57-1,068.83

Finding the Fourth Proportional to 1,102.20, 1,642.57 and 1,068.83

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Solution

The fourth proportional to 1,102.20, 1,642.57 and 1,068.83 is: 1,592.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.20 : 1,642.57 = 1,068.83 : x
  2. Step 2: Convert to fraction form
    1,102.20/1,642.57 = 1,068.83/x
  3. Step 3: Cross multiply
    1,102.20x = 1,642.57 × 1,068.83
  4. Step 4: Simplify right side
    1,102.20x = 1,755,628.09
  5. Step 5: Solve for x
    x = 1,755,628.09/1,102.20
  6. Step 6: Final answer
    x = 1,592.84

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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.