Home / 4,187.28-5,778.60-2,419.08

Finding the Fourth Proportional to 4,187.28, 5,778.60 and 2,419.08

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Solution

The fourth proportional to 4,187.28, 5,778.60 and 2,419.08 is: 3,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.28 : 5,778.60 = 2,419.08 : x
  2. Step 2: Convert to fraction form
    4,187.28/5,778.60 = 2,419.08/x
  3. Step 3: Cross multiply
    4,187.28x = 5,778.60 × 2,419.08
  4. Step 4: Simplify right side
    4,187.28x = 13,978,895.69
  5. Step 5: Solve for x
    x = 13,978,895.69/4,187.28
  6. Step 6: Final answer
    x = 3,338.42

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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.