Home / 5,175.54-7,763.55-1,478.30

Finding the Fourth Proportional to 5,175.54, 7,763.55 and 1,478.30

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Solution

The fourth proportional to 5,175.54, 7,763.55 and 1,478.30 is: 2,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.54 : 7,763.55 = 1,478.30 : x
  2. Step 2: Convert to fraction form
    5,175.54/7,763.55 = 1,478.30/x
  3. Step 3: Cross multiply
    5,175.54x = 7,763.55 × 1,478.30
  4. Step 4: Simplify right side
    5,175.54x = 11,476,817.15
  5. Step 5: Solve for x
    x = 11,476,817.15/5,175.54
  6. Step 6: Final answer
    x = 2,217.51

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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.