Home / 1,195.74-1,646.55-1,108.62

Finding the Fourth Proportional to 1,195.74, 1,646.55 and 1,108.62

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Solution

The fourth proportional to 1,195.74, 1,646.55 and 1,108.62 is: 1,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.74 : 1,646.55 = 1,108.62 : x
  2. Step 2: Convert to fraction form
    1,195.74/1,646.55 = 1,108.62/x
  3. Step 3: Cross multiply
    1,195.74x = 1,646.55 × 1,108.62
  4. Step 4: Simplify right side
    1,195.74x = 1,825,398.26
  5. Step 5: Solve for x
    x = 1,825,398.26/1,195.74
  6. Step 6: Final answer
    x = 1,526.58

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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.