Home / 1,436.70-2,154.64-396.45

Finding the Fourth Proportional to 1,436.70, 2,154.64 and 396.45

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Solution

The fourth proportional to 1,436.70, 2,154.64 and 396.45 is: 594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.70 : 2,154.64 = 396.45 : x
  2. Step 2: Convert to fraction form
    1,436.70/2,154.64 = 396.45/x
  3. Step 3: Cross multiply
    1,436.70x = 2,154.64 × 396.45
  4. Step 4: Simplify right side
    1,436.70x = 854,207.03
  5. Step 5: Solve for x
    x = 854,207.03/1,436.70
  6. Step 6: Final answer
    x = 594.56

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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.