Home / 3,861.48-5,328.42-2,182.89

Finding the Fourth Proportional to 3,861.48, 5,328.42 and 2,182.89

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Solution

The fourth proportional to 3,861.48, 5,328.42 and 2,182.89 is: 3,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.48 : 5,328.42 = 2,182.89 : x
  2. Step 2: Convert to fraction form
    3,861.48/5,328.42 = 2,182.89/x
  3. Step 3: Cross multiply
    3,861.48x = 5,328.42 × 2,182.89
  4. Step 4: Simplify right side
    3,861.48x = 11,631,326.57
  5. Step 5: Solve for x
    x = 11,631,326.57/3,861.48
  6. Step 6: Final answer
    x = 3,012.14

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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.