Home / 4,268.40-6,404.20-1,927.72

Finding the Fourth Proportional to 4,268.40, 6,404.20 and 1,927.72

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Solution

The fourth proportional to 4,268.40, 6,404.20 and 1,927.72 is: 2,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.40 : 6,404.20 = 1,927.72 : x
  2. Step 2: Convert to fraction form
    4,268.40/6,404.20 = 1,927.72/x
  3. Step 3: Cross multiply
    4,268.40x = 6,404.20 × 1,927.72
  4. Step 4: Simplify right side
    4,268.40x = 12,345,504.42
  5. Step 5: Solve for x
    x = 12,345,504.42/4,268.40
  6. Step 6: Final answer
    x = 2,892.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.