Home / 4,853.75-7,280.63-1,205.75

Finding the Fourth Proportional to 4,853.75, 7,280.63 and 1,205.75

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Solution

The fourth proportional to 4,853.75, 7,280.63 and 1,205.75 is: 1,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.75 : 7,280.63 = 1,205.75 : x
  2. Step 2: Convert to fraction form
    4,853.75/7,280.63 = 1,205.75/x
  3. Step 3: Cross multiply
    4,853.75x = 7,280.63 × 1,205.75
  4. Step 4: Simplify right side
    4,853.75x = 8,778,619.62
  5. Step 5: Solve for x
    x = 8,778,619.62/4,853.75
  6. Step 6: Final answer
    x = 1,808.63

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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.