Home / 3,895.24-5,374.60-2,478.41

Finding the Fourth Proportional to 3,895.24, 5,374.60 and 2,478.41

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Solution

The fourth proportional to 3,895.24, 5,374.60 and 2,478.41 is: 3,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.24 : 5,374.60 = 2,478.41 : x
  2. Step 2: Convert to fraction form
    3,895.24/5,374.60 = 2,478.41/x
  3. Step 3: Cross multiply
    3,895.24x = 5,374.60 × 2,478.41
  4. Step 4: Simplify right side
    3,895.24x = 13,320,462.39
  5. Step 5: Solve for x
    x = 13,320,462.39/3,895.24
  6. Step 6: Final answer
    x = 3,419.68

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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.