Home / 1,214.07-1,671.80-1,186.83

Finding the Fourth Proportional to 1,214.07, 1,671.80 and 1,186.83

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Solution

The fourth proportional to 1,214.07, 1,671.80 and 1,186.83 is: 1,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.07 : 1,671.80 = 1,186.83 : x
  2. Step 2: Convert to fraction form
    1,214.07/1,671.80 = 1,186.83/x
  3. Step 3: Cross multiply
    1,214.07x = 1,671.80 × 1,186.83
  4. Step 4: Simplify right side
    1,214.07x = 1,984,136.46
  5. Step 5: Solve for x
    x = 1,984,136.46/1,214.07
  6. Step 6: Final answer
    x = 1,634.29

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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.