Home / 1,643.25-2,267.70-944.64

Finding the Fourth Proportional to 1,643.25, 2,267.70 and 944.64

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Solution

The fourth proportional to 1,643.25, 2,267.70 and 944.64 is: 1,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.25 : 2,267.70 = 944.64 : x
  2. Step 2: Convert to fraction form
    1,643.25/2,267.70 = 944.64/x
  3. Step 3: Cross multiply
    1,643.25x = 2,267.70 × 944.64
  4. Step 4: Simplify right side
    1,643.25x = 2,142,160.13
  5. Step 5: Solve for x
    x = 2,142,160.13/1,643.25
  6. Step 6: Final answer
    x = 1,303.61

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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.