Home / 1,836.57-2,757.28-1,758.40

Finding the Fourth Proportional to 1,836.57, 2,757.28 and 1,758.40

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Solution

The fourth proportional to 1,836.57, 2,757.28 and 1,758.40 is: 2,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.57 : 2,757.28 = 1,758.40 : x
  2. Step 2: Convert to fraction form
    1,836.57/2,757.28 = 1,758.40/x
  3. Step 3: Cross multiply
    1,836.57x = 2,757.28 × 1,758.40
  4. Step 4: Simplify right side
    1,836.57x = 4,848,401.15
  5. Step 5: Solve for x
    x = 4,848,401.15/1,836.57
  6. Step 6: Final answer
    x = 2,639.92

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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.