Home / 5,157.41-7,117.57-2,919.27

Finding the Fourth Proportional to 5,157.41, 7,117.57 and 2,919.27

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Solution

The fourth proportional to 5,157.41, 7,117.57 and 2,919.27 is: 4,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.41 : 7,117.57 = 2,919.27 : x
  2. Step 2: Convert to fraction form
    5,157.41/7,117.57 = 2,919.27/x
  3. Step 3: Cross multiply
    5,157.41x = 7,117.57 × 2,919.27
  4. Step 4: Simplify right side
    5,157.41x = 20,778,138.91
  5. Step 5: Solve for x
    x = 20,778,138.91/5,157.41
  6. Step 6: Final answer
    x = 4,028.80

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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.