Home / 4,775.89-7,166.27-2,178.49

Finding the Fourth Proportional to 4,775.89, 7,166.27 and 2,178.49

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Solution

The fourth proportional to 4,775.89, 7,166.27 and 2,178.49 is: 3,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.89 : 7,166.27 = 2,178.49 : x
  2. Step 2: Convert to fraction form
    4,775.89/7,166.27 = 2,178.49/x
  3. Step 3: Cross multiply
    4,775.89x = 7,166.27 × 2,178.49
  4. Step 4: Simplify right side
    4,775.89x = 15,611,647.53
  5. Step 5: Solve for x
    x = 15,611,647.53/4,775.89
  6. Step 6: Final answer
    x = 3,268.85

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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.