Home / 5,139.12-7,084.44-3,703.92

Finding the Fourth Proportional to 5,139.12, 7,084.44 and 3,703.92

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Solution

The fourth proportional to 5,139.12, 7,084.44 and 3,703.92 is: 5,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.12 : 7,084.44 = 3,703.92 : x
  2. Step 2: Convert to fraction form
    5,139.12/7,084.44 = 3,703.92/x
  3. Step 3: Cross multiply
    5,139.12x = 7,084.44 × 3,703.92
  4. Step 4: Simplify right side
    5,139.12x = 26,240,199.00
  5. Step 5: Solve for x
    x = 26,240,199.00/5,139.12
  6. Step 6: Final answer
    x = 5,105.97

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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.