Home / 5,780.72-8,668.80-3,145.52

Finding the Fourth Proportional to 5,780.72, 8,668.80 and 3,145.52

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Solution

The fourth proportional to 5,780.72, 8,668.80 and 3,145.52 is: 4,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.72 : 8,668.80 = 3,145.52 : x
  2. Step 2: Convert to fraction form
    5,780.72/8,668.80 = 3,145.52/x
  3. Step 3: Cross multiply
    5,780.72x = 8,668.80 × 3,145.52
  4. Step 4: Simplify right side
    5,780.72x = 27,267,883.78
  5. Step 5: Solve for x
    x = 27,267,883.78/5,780.72
  6. Step 6: Final answer
    x = 4,717.04

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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.