Home / 3,127.66-4,687.34-1,643.84

Finding the Fourth Proportional to 3,127.66, 4,687.34 and 1,643.84

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Solution

The fourth proportional to 3,127.66, 4,687.34 and 1,643.84 is: 2,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.66 : 4,687.34 = 1,643.84 : x
  2. Step 2: Convert to fraction form
    3,127.66/4,687.34 = 1,643.84/x
  3. Step 3: Cross multiply
    3,127.66x = 4,687.34 × 1,643.84
  4. Step 4: Simplify right side
    3,127.66x = 7,705,252.81
  5. Step 5: Solve for x
    x = 7,705,252.81/3,127.66
  6. Step 6: Final answer
    x = 2,463.59

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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.