Home / 1,935.25-2,672.03-1,190.21

Finding the Fourth Proportional to 1,935.25, 2,672.03 and 1,190.21

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Solution

The fourth proportional to 1,935.25, 2,672.03 and 1,190.21 is: 1,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.25 : 2,672.03 = 1,190.21 : x
  2. Step 2: Convert to fraction form
    1,935.25/2,672.03 = 1,190.21/x
  3. Step 3: Cross multiply
    1,935.25x = 2,672.03 × 1,190.21
  4. Step 4: Simplify right side
    1,935.25x = 3,180,276.83
  5. Step 5: Solve for x
    x = 3,180,276.83/1,935.25
  6. Step 6: Final answer
    x = 1,643.34

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Half scale
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Double 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.