Home / 5,175.20-7,761.62-1,477.34

Finding the Fourth Proportional to 5,175.20, 7,761.62 and 1,477.34

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Solution

The fourth proportional to 5,175.20, 7,761.62 and 1,477.34 is: 2,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.20 : 7,761.62 = 1,477.34 : x
  2. Step 2: Convert to fraction form
    5,175.20/7,761.62 = 1,477.34/x
  3. Step 3: Cross multiply
    5,175.20x = 7,761.62 × 1,477.34
  4. Step 4: Simplify right side
    5,175.20x = 11,466,551.69
  5. Step 5: Solve for x
    x = 11,466,551.69/5,175.20
  6. Step 6: Final answer
    x = 2,215.67

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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.