Home / 1,643.51-2,267.79-944.75

Finding the Fourth Proportional to 1,643.51, 2,267.79 and 944.75

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Solution

The fourth proportional to 1,643.51, 2,267.79 and 944.75 is: 1,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.51 : 2,267.79 = 944.75 : x
  2. Step 2: Convert to fraction form
    1,643.51/2,267.79 = 944.75/x
  3. Step 3: Cross multiply
    1,643.51x = 2,267.79 × 944.75
  4. Step 4: Simplify right side
    1,643.51x = 2,142,494.60
  5. Step 5: Solve for x
    x = 2,142,494.60/1,643.51
  6. Step 6: Final answer
    x = 1,303.61

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Half scale
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1.5x scale

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.