Home / 3,155.50-4,733.25-1,305.28

Finding the Fourth Proportional to 3,155.50, 4,733.25 and 1,305.28

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Solution

The fourth proportional to 3,155.50, 4,733.25 and 1,305.28 is: 1,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.50 : 4,733.25 = 1,305.28 : x
  2. Step 2: Convert to fraction form
    3,155.50/4,733.25 = 1,305.28/x
  3. Step 3: Cross multiply
    3,155.50x = 4,733.25 × 1,305.28
  4. Step 4: Simplify right side
    3,155.50x = 6,178,216.56
  5. Step 5: Solve for x
    x = 6,178,216.56/3,155.50
  6. Step 6: Final answer
    x = 1,957.92

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.