Home / 1,425.24-2,137.08-451.08

Finding the Fourth Proportional to 1,425.24, 2,137.08 and 451.08

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Solution

The fourth proportional to 1,425.24, 2,137.08 and 451.08 is: 676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.24 : 2,137.08 = 451.08 : x
  2. Step 2: Convert to fraction form
    1,425.24/2,137.08 = 451.08/x
  3. Step 3: Cross multiply
    1,425.24x = 2,137.08 × 451.08
  4. Step 4: Simplify right side
    1,425.24x = 963,994.05
  5. Step 5: Solve for x
    x = 963,994.05/1,425.24
  6. Step 6: Final answer
    x = 676.37

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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.