Home / 4,138.08-5,713.92-2,816.16

Finding the Fourth Proportional to 4,138.08, 5,713.92 and 2,816.16

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Solution

The fourth proportional to 4,138.08, 5,713.92 and 2,816.16 is: 3,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.08 : 5,713.92 = 2,816.16 : x
  2. Step 2: Convert to fraction form
    4,138.08/5,713.92 = 2,816.16/x
  3. Step 3: Cross multiply
    4,138.08x = 5,713.92 × 2,816.16
  4. Step 4: Simplify right side
    4,138.08x = 16,091,312.95
  5. Step 5: Solve for x
    x = 16,091,312.95/4,138.08
  6. Step 6: Final answer
    x = 3,888.59

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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.