Home / 5,383.75-7,427.05-3,812.71

Finding the Fourth Proportional to 5,383.75, 7,427.05 and 3,812.71

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Solution

The fourth proportional to 5,383.75, 7,427.05 and 3,812.71 is: 5,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.75 : 7,427.05 = 3,812.71 : x
  2. Step 2: Convert to fraction form
    5,383.75/7,427.05 = 3,812.71/x
  3. Step 3: Cross multiply
    5,383.75x = 7,427.05 × 3,812.71
  4. Step 4: Simplify right side
    5,383.75x = 28,317,187.81
  5. Step 5: Solve for x
    x = 28,317,187.81/5,383.75
  6. Step 6: Final answer
    x = 5,259.75

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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.