Home / 6,145.08-8,480.92-3,419.89

Finding the Fourth Proportional to 6,145.08, 8,480.92 and 3,419.89

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Solution

The fourth proportional to 6,145.08, 8,480.92 and 3,419.89 is: 4,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.08 : 8,480.92 = 3,419.89 : x
  2. Step 2: Convert to fraction form
    6,145.08/8,480.92 = 3,419.89/x
  3. Step 3: Cross multiply
    6,145.08x = 8,480.92 × 3,419.89
  4. Step 4: Simplify right side
    6,145.08x = 29,003,813.50
  5. Step 5: Solve for x
    x = 29,003,813.50/6,145.08
  6. Step 6: Final answer
    x = 4,719.84

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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.