Home / 1,425.33-2,137.95-356.76

Finding the Fourth Proportional to 1,425.33, 2,137.95 and 356.76

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Solution

The fourth proportional to 1,425.33, 2,137.95 and 356.76 is: 535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.33 : 2,137.95 = 356.76 : x
  2. Step 2: Convert to fraction form
    1,425.33/2,137.95 = 356.76/x
  3. Step 3: Cross multiply
    1,425.33x = 2,137.95 × 356.76
  4. Step 4: Simplify right side
    1,425.33x = 762,735.04
  5. Step 5: Solve for x
    x = 762,735.04/1,425.33
  6. Step 6: Final answer
    x = 535.13

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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.