Home / 4,745.75-7,118.64-1,667.75

Finding the Fourth Proportional to 4,745.75, 7,118.64 and 1,667.75

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Solution

The fourth proportional to 4,745.75, 7,118.64 and 1,667.75 is: 2,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.75 : 7,118.64 = 1,667.75 : x
  2. Step 2: Convert to fraction form
    4,745.75/7,118.64 = 1,667.75/x
  3. Step 3: Cross multiply
    4,745.75x = 7,118.64 × 1,667.75
  4. Step 4: Simplify right side
    4,745.75x = 11,872,111.86
  5. Step 5: Solve for x
    x = 11,872,111.86/4,745.75
  6. Step 6: Final answer
    x = 2,501.63

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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.