Home / 3,082.08-4,256.64-1,905.96

Finding the Fourth Proportional to 3,082.08, 4,256.64 and 1,905.96

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Solution

The fourth proportional to 3,082.08, 4,256.64 and 1,905.96 is: 2,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.08 : 4,256.64 = 1,905.96 : x
  2. Step 2: Convert to fraction form
    3,082.08/4,256.64 = 1,905.96/x
  3. Step 3: Cross multiply
    3,082.08x = 4,256.64 × 1,905.96
  4. Step 4: Simplify right side
    3,082.08x = 8,112,985.57
  5. Step 5: Solve for x
    x = 8,112,985.57/3,082.08
  6. Step 6: Final answer
    x = 2,632.31

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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.