Home / 1,787.32-2,675.14-1,616.82

Finding the Fourth Proportional to 1,787.32, 2,675.14 and 1,616.82

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Solution

The fourth proportional to 1,787.32, 2,675.14 and 1,616.82 is: 2,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.32 : 2,675.14 = 1,616.82 : x
  2. Step 2: Convert to fraction form
    1,787.32/2,675.14 = 1,616.82/x
  3. Step 3: Cross multiply
    1,787.32x = 2,675.14 × 1,616.82
  4. Step 4: Simplify right side
    1,787.32x = 4,325,219.85
  5. Step 5: Solve for x
    x = 4,325,219.85/1,787.32
  6. Step 6: Final answer
    x = 2,419.95

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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.