Home / 4,242.27-6,364.50-1,320.60

Finding the Fourth Proportional to 4,242.27, 6,364.50 and 1,320.60

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Solution

The fourth proportional to 4,242.27, 6,364.50 and 1,320.60 is: 1,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.27 : 6,364.50 = 1,320.60 : x
  2. Step 2: Convert to fraction form
    4,242.27/6,364.50 = 1,320.60/x
  3. Step 3: Cross multiply
    4,242.27x = 6,364.50 × 1,320.60
  4. Step 4: Simplify right side
    4,242.27x = 8,404,958.70
  5. Step 5: Solve for x
    x = 8,404,958.70/4,242.27
  6. Step 6: Final answer
    x = 1,981.24

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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.