Home / 2,182.35-3,011.67-1,187.61

Finding the Fourth Proportional to 2,182.35, 3,011.67 and 1,187.61

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Solution

The fourth proportional to 2,182.35, 3,011.67 and 1,187.61 is: 1,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.35 : 3,011.67 = 1,187.61 : x
  2. Step 2: Convert to fraction form
    2,182.35/3,011.67 = 1,187.61/x
  3. Step 3: Cross multiply
    2,182.35x = 3,011.67 × 1,187.61
  4. Step 4: Simplify right side
    2,182.35x = 3,576,692.38
  5. Step 5: Solve for x
    x = 3,576,692.38/2,182.35
  6. Step 6: Final answer
    x = 1,638.92

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1.5x scale

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.