Home / 3,903.96-5,389.02-2,331.75

Finding the Fourth Proportional to 3,903.96, 5,389.02 and 2,331.75

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Solution

The fourth proportional to 3,903.96, 5,389.02 and 2,331.75 is: 3,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.96 : 5,389.02 = 2,331.75 : x
  2. Step 2: Convert to fraction form
    3,903.96/5,389.02 = 2,331.75/x
  3. Step 3: Cross multiply
    3,903.96x = 5,389.02 × 2,331.75
  4. Step 4: Simplify right side
    3,903.96x = 12,565,847.39
  5. Step 5: Solve for x
    x = 12,565,847.39/3,903.96
  6. Step 6: Final answer
    x = 3,218.74

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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.