Home / 5,236.72-7,226.54-2,878.80

Finding the Fourth Proportional to 5,236.72, 7,226.54 and 2,878.80

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Solution

The fourth proportional to 5,236.72, 7,226.54 and 2,878.80 is: 3,972.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.72 : 7,226.54 = 2,878.80 : x
  2. Step 2: Convert to fraction form
    5,236.72/7,226.54 = 2,878.80/x
  3. Step 3: Cross multiply
    5,236.72x = 7,226.54 × 2,878.80
  4. Step 4: Simplify right side
    5,236.72x = 20,803,763.35
  5. Step 5: Solve for x
    x = 20,803,763.35/5,236.72
  6. Step 6: Final answer
    x = 3,972.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.