Home / 1,423.83-2,135.97-450.16

Finding the Fourth Proportional to 1,423.83, 2,135.97 and 450.16

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Solution

The fourth proportional to 1,423.83, 2,135.97 and 450.16 is: 675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.83 : 2,135.97 = 450.16 : x
  2. Step 2: Convert to fraction form
    1,423.83/2,135.97 = 450.16/x
  3. Step 3: Cross multiply
    1,423.83x = 2,135.97 × 450.16
  4. Step 4: Simplify right side
    1,423.83x = 961,522.92
  5. Step 5: Solve for x
    x = 961,522.92/1,423.83
  6. Step 6: Final answer
    x = 675.31

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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.