Home / 3,867.30-5,335.74-2,431.80

Finding the Fourth Proportional to 3,867.30, 5,335.74 and 2,431.80

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Solution

The fourth proportional to 3,867.30, 5,335.74 and 2,431.80 is: 3,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.30 : 5,335.74 = 2,431.80 : x
  2. Step 2: Convert to fraction form
    3,867.30/5,335.74 = 2,431.80/x
  3. Step 3: Cross multiply
    3,867.30x = 5,335.74 × 2,431.80
  4. Step 4: Simplify right side
    3,867.30x = 12,975,452.53
  5. Step 5: Solve for x
    x = 12,975,452.53/3,867.30
  6. Step 6: Final answer
    x = 3,355.17

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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.