Home / 5,199.72-7,175.36-2,841.86

Finding the Fourth Proportional to 5,199.72, 7,175.36 and 2,841.86

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Solution

The fourth proportional to 5,199.72, 7,175.36 and 2,841.86 is: 3,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.72 : 7,175.36 = 2,841.86 : x
  2. Step 2: Convert to fraction form
    5,199.72/7,175.36 = 2,841.86/x
  3. Step 3: Cross multiply
    5,199.72x = 7,175.36 × 2,841.86
  4. Step 4: Simplify right side
    5,199.72x = 20,391,368.57
  5. Step 5: Solve for x
    x = 20,391,368.57/5,199.72
  6. Step 6: Final answer
    x = 3,921.63

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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.