Home / 1,425.02-2,137.34-451.14

Finding the Fourth Proportional to 1,425.02, 2,137.34 and 451.14

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Solution

The fourth proportional to 1,425.02, 2,137.34 and 451.14 is: 676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.02 : 2,137.34 = 451.14 : x
  2. Step 2: Convert to fraction form
    1,425.02/2,137.34 = 451.14/x
  3. Step 3: Cross multiply
    1,425.02x = 2,137.34 × 451.14
  4. Step 4: Simplify right side
    1,425.02x = 964,239.57
  5. Step 5: Solve for x
    x = 964,239.57/1,425.02
  6. Step 6: Final answer
    x = 676.65

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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.