Home / 2,515.32-3,772.44-1,577.81

Finding the Fourth Proportional to 2,515.32, 3,772.44 and 1,577.81

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Solution

The fourth proportional to 2,515.32, 3,772.44 and 1,577.81 is: 2,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.32 : 3,772.44 = 1,577.81 : x
  2. Step 2: Convert to fraction form
    2,515.32/3,772.44 = 1,577.81/x
  3. Step 3: Cross multiply
    2,515.32x = 3,772.44 × 1,577.81
  4. Step 4: Simplify right side
    2,515.32x = 5,952,202.99
  5. Step 5: Solve for x
    x = 5,952,202.99/2,515.32
  6. Step 6: Final answer
    x = 2,366.38

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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.