Home / 4,188.08-5,778.62-2,419.30

Finding the Fourth Proportional to 4,188.08, 5,778.62 and 2,419.30

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Solution

The fourth proportional to 4,188.08, 5,778.62 and 2,419.30 is: 3,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.08 : 5,778.62 = 2,419.30 : x
  2. Step 2: Convert to fraction form
    4,188.08/5,778.62 = 2,419.30/x
  3. Step 3: Cross multiply
    4,188.08x = 5,778.62 × 2,419.30
  4. Step 4: Simplify right side
    4,188.08x = 13,980,215.37
  5. Step 5: Solve for x
    x = 13,980,215.37/4,188.08
  6. Step 6: Final answer
    x = 3,338.10

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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.