Home / 7,620.48-11,429.88-2,426.76

Finding the Fourth Proportional to 7,620.48, 11,429.88 and 2,426.76

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Solution

The fourth proportional to 7,620.48, 11,429.88 and 2,426.76 is: 3,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.48 : 11,429.88 = 2,426.76 : x
  2. Step 2: Convert to fraction form
    7,620.48/11,429.88 = 2,426.76/x
  3. Step 3: Cross multiply
    7,620.48x = 11,429.88 × 2,426.76
  4. Step 4: Simplify right side
    7,620.48x = 27,737,575.59
  5. Step 5: Solve for x
    x = 27,737,575.59/7,620.48
  6. Step 6: Final answer
    x = 3,639.87

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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.