Home / 1,777.91-2,670.32-1,449.09

Finding the Fourth Proportional to 1,777.91, 2,670.32 and 1,449.09

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Solution

The fourth proportional to 1,777.91, 2,670.32 and 1,449.09 is: 2,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.91 : 2,670.32 = 1,449.09 : x
  2. Step 2: Convert to fraction form
    1,777.91/2,670.32 = 1,449.09/x
  3. Step 3: Cross multiply
    1,777.91x = 2,670.32 × 1,449.09
  4. Step 4: Simplify right side
    1,777.91x = 3,869,535.13
  5. Step 5: Solve for x
    x = 3,869,535.13/1,777.91
  6. Step 6: Final answer
    x = 2,176.45

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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.