Home / 3,875.34-5,811.12-1,928.64

Finding the Fourth Proportional to 3,875.34, 5,811.12 and 1,928.64

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Solution

The fourth proportional to 3,875.34, 5,811.12 and 1,928.64 is: 2,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.34 : 5,811.12 = 1,928.64 : x
  2. Step 2: Convert to fraction form
    3,875.34/5,811.12 = 1,928.64/x
  3. Step 3: Cross multiply
    3,875.34x = 5,811.12 × 1,928.64
  4. Step 4: Simplify right side
    3,875.34x = 11,207,558.48
  5. Step 5: Solve for x
    x = 11,207,558.48/3,875.34
  6. Step 6: Final answer
    x = 2,892.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.