Home / 1,423.26-2,135.38-499.06

Finding the Fourth Proportional to 1,423.26, 2,135.38 and 499.06

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Solution

The fourth proportional to 1,423.26, 2,135.38 and 499.06 is: 748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.26 : 2,135.38 = 499.06 : x
  2. Step 2: Convert to fraction form
    1,423.26/2,135.38 = 499.06/x
  3. Step 3: Cross multiply
    1,423.26x = 2,135.38 × 499.06
  4. Step 4: Simplify right side
    1,423.26x = 1,065,682.74
  5. Step 5: Solve for x
    x = 1,065,682.74/1,423.26
  6. Step 6: Final answer
    x = 748.76

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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.