Home / 6,870.88-9,481.80-3,727.07

Finding the Fourth Proportional to 6,870.88, 9,481.80 and 3,727.07

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Solution

The fourth proportional to 6,870.88, 9,481.80 and 3,727.07 is: 5,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.88 : 9,481.80 = 3,727.07 : x
  2. Step 2: Convert to fraction form
    6,870.88/9,481.80 = 3,727.07/x
  3. Step 3: Cross multiply
    6,870.88x = 9,481.80 × 3,727.07
  4. Step 4: Simplify right side
    6,870.88x = 35,339,353.50
  5. Step 5: Solve for x
    x = 35,339,353.50/6,870.88
  6. Step 6: Final answer
    x = 5,143.35

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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.