Home / 7,125.36-10,686.72-3,228.84

Finding the Fourth Proportional to 7,125.36, 10,686.72 and 3,228.84

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Solution

The fourth proportional to 7,125.36, 10,686.72 and 3,228.84 is: 4,842.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.36 : 10,686.72 = 3,228.84 : x
  2. Step 2: Convert to fraction form
    7,125.36/10,686.72 = 3,228.84/x
  3. Step 3: Cross multiply
    7,125.36x = 10,686.72 × 3,228.84
  4. Step 4: Simplify right side
    7,125.36x = 34,505,709.00
  5. Step 5: Solve for x
    x = 34,505,709.00/7,125.36
  6. Step 6: Final answer
    x = 4,842.66

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1.5x scale

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.