Home / 2,643.30-3,646.26-1,757.88

Finding the Fourth Proportional to 2,643.30, 3,646.26 and 1,757.88

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Solution

The fourth proportional to 2,643.30, 3,646.26 and 1,757.88 is: 2,424.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.30 : 3,646.26 = 1,757.88 : x
  2. Step 2: Convert to fraction form
    2,643.30/3,646.26 = 1,757.88/x
  3. Step 3: Cross multiply
    2,643.30x = 3,646.26 × 1,757.88
  4. Step 4: Simplify right side
    2,643.30x = 6,409,687.53
  5. Step 5: Solve for x
    x = 6,409,687.53/2,643.30
  6. Step 6: Final answer
    x = 2,424.88

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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.