Home / 5,121.26-7,682.04-1,423.76

Finding the Fourth Proportional to 5,121.26, 7,682.04 and 1,423.76

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Solution

The fourth proportional to 5,121.26, 7,682.04 and 1,423.76 is: 2,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.26 : 7,682.04 = 1,423.76 : x
  2. Step 2: Convert to fraction form
    5,121.26/7,682.04 = 1,423.76/x
  3. Step 3: Cross multiply
    5,121.26x = 7,682.04 × 1,423.76
  4. Step 4: Simplify right side
    5,121.26x = 10,937,381.27
  5. Step 5: Solve for x
    x = 10,937,381.27/5,121.26
  6. Step 6: Final answer
    x = 2,135.68

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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.