Home / 2,147.87-2,962.76-1,351.64

Finding the Fourth Proportional to 2,147.87, 2,962.76 and 1,351.64

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Solution

The fourth proportional to 2,147.87, 2,962.76 and 1,351.64 is: 1,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.87 : 2,962.76 = 1,351.64 : x
  2. Step 2: Convert to fraction form
    2,147.87/2,962.76 = 1,351.64/x
  3. Step 3: Cross multiply
    2,147.87x = 2,962.76 × 1,351.64
  4. Step 4: Simplify right side
    2,147.87x = 4,004,563.35
  5. Step 5: Solve for x
    x = 4,004,563.35/2,147.87
  6. Step 6: Final answer
    x = 1,864.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.