Home / 5,108.58-7,658.69-1,819.80

Finding the Fourth Proportional to 5,108.58, 7,658.69 and 1,819.80

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Solution

The fourth proportional to 5,108.58, 7,658.69 and 1,819.80 is: 2,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.58 : 7,658.69 = 1,819.80 : x
  2. Step 2: Convert to fraction form
    5,108.58/7,658.69 = 1,819.80/x
  3. Step 3: Cross multiply
    5,108.58x = 7,658.69 × 1,819.80
  4. Step 4: Simplify right side
    5,108.58x = 13,937,274.96
  5. Step 5: Solve for x
    x = 13,937,274.96/5,108.58
  6. Step 6: Final answer
    x = 2,728.21

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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.