Home / 2,232.60-3,080.70-1,643.40

Finding the Fourth Proportional to 2,232.60, 3,080.70 and 1,643.40

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Solution

The fourth proportional to 2,232.60, 3,080.70 and 1,643.40 is: 2,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.60 : 3,080.70 = 1,643.40 : x
  2. Step 2: Convert to fraction form
    2,232.60/3,080.70 = 1,643.40/x
  3. Step 3: Cross multiply
    2,232.60x = 3,080.70 × 1,643.40
  4. Step 4: Simplify right side
    2,232.60x = 5,062,822.38
  5. Step 5: Solve for x
    x = 5,062,822.38/2,232.60
  6. Step 6: Final answer
    x = 2,267.68

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Half scale
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Double scale
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Similar ratio
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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.