Home / 4,207.37-6,311.06-1,285.66

Finding the Fourth Proportional to 4,207.37, 6,311.06 and 1,285.66

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Solution

The fourth proportional to 4,207.37, 6,311.06 and 1,285.66 is: 1,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.37 : 6,311.06 = 1,285.66 : x
  2. Step 2: Convert to fraction form
    4,207.37/6,311.06 = 1,285.66/x
  3. Step 3: Cross multiply
    4,207.37x = 6,311.06 × 1,285.66
  4. Step 4: Simplify right side
    4,207.37x = 8,113,864.84
  5. Step 5: Solve for x
    x = 8,113,864.84/4,207.37
  6. Step 6: Final answer
    x = 1,928.49

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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.