Home / 2,147.87-2,964.57-1,400.54

Finding the Fourth Proportional to 2,147.87, 2,964.57 and 1,400.54

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Solution

The fourth proportional to 2,147.87, 2,964.57 and 1,400.54 is: 1,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.87 : 2,964.57 = 1,400.54 : x
  2. Step 2: Convert to fraction form
    2,147.87/2,964.57 = 1,400.54/x
  3. Step 3: Cross multiply
    2,147.87x = 2,964.57 × 1,400.54
  4. Step 4: Simplify right side
    2,147.87x = 4,151,978.79
  5. Step 5: Solve for x
    x = 4,151,978.79/2,147.87
  6. Step 6: Final answer
    x = 1,933.07

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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.