Home / 1,186.04-1,779.71-1,122.68

Finding the Fourth Proportional to 1,186.04, 1,779.71 and 1,122.68

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Solution

The fourth proportional to 1,186.04, 1,779.71 and 1,122.68 is: 1,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.04 : 1,779.71 = 1,122.68 : x
  2. Step 2: Convert to fraction form
    1,186.04/1,779.71 = 1,122.68/x
  3. Step 3: Cross multiply
    1,186.04x = 1,779.71 × 1,122.68
  4. Step 4: Simplify right side
    1,186.04x = 1,998,043.66
  5. Step 5: Solve for x
    x = 1,998,043.66/1,186.04
  6. Step 6: Final answer
    x = 1,684.63

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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.