Home / 7,715.28-11,573.40-3,098.28

Finding the Fourth Proportional to 7,715.28, 11,573.40 and 3,098.28

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Solution

The fourth proportional to 7,715.28, 11,573.40 and 3,098.28 is: 4,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.28 : 11,573.40 = 3,098.28 : x
  2. Step 2: Convert to fraction form
    7,715.28/11,573.40 = 3,098.28/x
  3. Step 3: Cross multiply
    7,715.28x = 11,573.40 × 3,098.28
  4. Step 4: Simplify right side
    7,715.28x = 35,857,633.75
  5. Step 5: Solve for x
    x = 35,857,633.75/7,715.28
  6. Step 6: Final answer
    x = 4,647.61

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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.