Home / 3,151.41-4,349.16-2,087.34

Finding the Fourth Proportional to 3,151.41, 4,349.16 and 2,087.34

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Solution

The fourth proportional to 3,151.41, 4,349.16 and 2,087.34 is: 2,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.41 : 4,349.16 = 2,087.34 : x
  2. Step 2: Convert to fraction form
    3,151.41/4,349.16 = 2,087.34/x
  3. Step 3: Cross multiply
    3,151.41x = 4,349.16 × 2,087.34
  4. Step 4: Simplify right side
    3,151.41x = 9,078,175.63
  5. Step 5: Solve for x
    x = 9,078,175.63/3,151.41
  6. Step 6: Final answer
    x = 2,880.67

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Half scale
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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.