Home / 3,877.81-5,349.40-2,383.36

Finding the Fourth Proportional to 3,877.81, 5,349.40 and 2,383.36

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Solution

The fourth proportional to 3,877.81, 5,349.40 and 2,383.36 is: 3,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.81 : 5,349.40 = 2,383.36 : x
  2. Step 2: Convert to fraction form
    3,877.81/5,349.40 = 2,383.36/x
  3. Step 3: Cross multiply
    3,877.81x = 5,349.40 × 2,383.36
  4. Step 4: Simplify right side
    3,877.81x = 12,749,526.65
  5. Step 5: Solve for x
    x = 12,749,526.65/3,877.81
  6. Step 6: Final answer
    x = 3,287.82

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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.