Home / 2,182-3,011.08-1,187.25

Finding the Fourth Proportional to 2,182, 3,011.08 and 1,187.25

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Solution

The fourth proportional to 2,182, 3,011.08 and 1,187.25 is: 1,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182 : 3,011.08 = 1,187.25 : x
  2. Step 2: Convert to fraction form
    2,182/3,011.08 = 1,187.25/x
  3. Step 3: Cross multiply
    2,182x = 3,011.08 × 1,187.25
  4. Step 4: Simplify right side
    2,182x = 3,574,904.73
  5. Step 5: Solve for x
    x = 3,574,904.73/2,182
  6. Step 6: Final answer
    x = 1,638.36

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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.