Home / 5,518.98-8,278.56-1,623.42

Finding the Fourth Proportional to 5,518.98, 8,278.56 and 1,623.42

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Solution

The fourth proportional to 5,518.98, 8,278.56 and 1,623.42 is: 2,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.98 : 8,278.56 = 1,623.42 : x
  2. Step 2: Convert to fraction form
    5,518.98/8,278.56 = 1,623.42/x
  3. Step 3: Cross multiply
    5,518.98x = 8,278.56 × 1,623.42
  4. Step 4: Simplify right side
    5,518.98x = 13,439,579.88
  5. Step 5: Solve for x
    x = 13,439,579.88/5,518.98
  6. Step 6: Final answer
    x = 2,435.16

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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.