Home / 5,175.72-7,763.70-1,478.28

Finding the Fourth Proportional to 5,175.72, 7,763.70 and 1,478.28

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Solution

The fourth proportional to 5,175.72, 7,763.70 and 1,478.28 is: 2,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.72 : 7,763.70 = 1,478.28 : x
  2. Step 2: Convert to fraction form
    5,175.72/7,763.70 = 1,478.28/x
  3. Step 3: Cross multiply
    5,175.72x = 7,763.70 × 1,478.28
  4. Step 4: Simplify right side
    5,175.72x = 11,476,922.44
  5. Step 5: Solve for x
    x = 11,476,922.44/5,175.72
  6. Step 6: Final answer
    x = 2,217.45

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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.