Home / 8,302.88-12,455.04-2,379.79

Finding the Fourth Proportional to 8,302.88, 12,455.04 and 2,379.79

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Solution

The fourth proportional to 8,302.88, 12,455.04 and 2,379.79 is: 3,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.88 : 12,455.04 = 2,379.79 : x
  2. Step 2: Convert to fraction form
    8,302.88/12,455.04 = 2,379.79/x
  3. Step 3: Cross multiply
    8,302.88x = 12,455.04 × 2,379.79
  4. Step 4: Simplify right side
    8,302.88x = 29,640,373.69
  5. Step 5: Solve for x
    x = 29,640,373.69/8,302.88
  6. Step 6: Final answer
    x = 3,569.89

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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.