Home / 3,861.36-5,331.60-2,371.32

Finding the Fourth Proportional to 3,861.36, 5,331.60 and 2,371.32

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Solution

The fourth proportional to 3,861.36, 5,331.60 and 2,371.32 is: 3,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.36 : 5,331.60 = 2,371.32 : x
  2. Step 2: Convert to fraction form
    3,861.36/5,331.60 = 2,371.32/x
  3. Step 3: Cross multiply
    3,861.36x = 5,331.60 × 2,371.32
  4. Step 4: Simplify right side
    3,861.36x = 12,642,929.71
  5. Step 5: Solve for x
    x = 12,642,929.71/3,861.36
  6. Step 6: Final answer
    x = 3,274.22

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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.