Home / 1,643.16-2,268.30-1,269.24

Finding the Fourth Proportional to 1,643.16, 2,268.30 and 1,269.24

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Solution

The fourth proportional to 1,643.16, 2,268.30 and 1,269.24 is: 1,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.16 : 2,268.30 = 1,269.24 : x
  2. Step 2: Convert to fraction form
    1,643.16/2,268.30 = 1,269.24/x
  3. Step 3: Cross multiply
    1,643.16x = 2,268.30 × 1,269.24
  4. Step 4: Simplify right side
    1,643.16x = 2,879,017.09
  5. Step 5: Solve for x
    x = 2,879,017.09/1,643.16
  6. Step 6: Final answer
    x = 1,752.12

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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.