Home / 4,519.56-6,778.50-1,398.98

Finding the Fourth Proportional to 4,519.56, 6,778.50 and 1,398.98

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Solution

The fourth proportional to 4,519.56, 6,778.50 and 1,398.98 is: 2,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.56 : 6,778.50 = 1,398.98 : x
  2. Step 2: Convert to fraction form
    4,519.56/6,778.50 = 1,398.98/x
  3. Step 3: Cross multiply
    4,519.56x = 6,778.50 × 1,398.98
  4. Step 4: Simplify right side
    4,519.56x = 9,482,978.94
  5. Step 5: Solve for x
    x = 9,482,978.94/4,519.56
  6. Step 6: Final answer
    x = 2,098.21

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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.