Home / 1,643.30-2,268.57-1,084.13

Finding the Fourth Proportional to 1,643.30, 2,268.57 and 1,084.13

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Solution

The fourth proportional to 1,643.30, 2,268.57 and 1,084.13 is: 1,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.30 : 2,268.57 = 1,084.13 : x
  2. Step 2: Convert to fraction form
    1,643.30/2,268.57 = 1,084.13/x
  3. Step 3: Cross multiply
    1,643.30x = 2,268.57 × 1,084.13
  4. Step 4: Simplify right side
    1,643.30x = 2,459,424.79
  5. Step 5: Solve for x
    x = 2,459,424.79/1,643.30
  6. Step 6: Final answer
    x = 1,496.64

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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.