Home / 1,946.60-2,685.62-1,248.36

Finding the Fourth Proportional to 1,946.60, 2,685.62 and 1,248.36

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Solution

The fourth proportional to 1,946.60, 2,685.62 and 1,248.36 is: 1,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.60 : 2,685.62 = 1,248.36 : x
  2. Step 2: Convert to fraction form
    1,946.60/2,685.62 = 1,248.36/x
  3. Step 3: Cross multiply
    1,946.60x = 2,685.62 × 1,248.36
  4. Step 4: Simplify right side
    1,946.60x = 3,352,620.58
  5. Step 5: Solve for x
    x = 3,352,620.58/1,946.60
  6. Step 6: Final answer
    x = 1,722.30

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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.