Home / 4,233.60-6,379.20-3,974.40

Finding the Fourth Proportional to 4,233.60, 6,379.20 and 3,974.40

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Solution

The fourth proportional to 4,233.60, 6,379.20 and 3,974.40 is: 5,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,233.60 : 6,379.20 = 3,974.40 : x
  2. Step 2: Convert to fraction form
    4,233.60/6,379.20 = 3,974.40/x
  3. Step 3: Cross multiply
    4,233.60x = 6,379.20 × 3,974.40
  4. Step 4: Simplify right side
    4,233.60x = 25,353,492.48
  5. Step 5: Solve for x
    x = 25,353,492.48/4,233.60
  6. Step 6: Final answer
    x = 5,988.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.