Home / 5,176.41-7,151.81-3,611.49

Finding the Fourth Proportional to 5,176.41, 7,151.81 and 3,611.49

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Solution

The fourth proportional to 5,176.41, 7,151.81 and 3,611.49 is: 4,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.41 : 7,151.81 = 3,611.49 : x
  2. Step 2: Convert to fraction form
    5,176.41/7,151.81 = 3,611.49/x
  3. Step 3: Cross multiply
    5,176.41x = 7,151.81 × 3,611.49
  4. Step 4: Simplify right side
    5,176.41x = 25,828,690.30
  5. Step 5: Solve for x
    x = 25,828,690.30/5,176.41
  6. Step 6: Final answer
    x = 4,989.69

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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.