Home / 5,519.76-8,280.80-1,623.84

Finding the Fourth Proportional to 5,519.76, 8,280.80 and 1,623.84

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Solution

The fourth proportional to 5,519.76, 8,280.80 and 1,623.84 is: 2,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.76 : 8,280.80 = 1,623.84 : x
  2. Step 2: Convert to fraction form
    5,519.76/8,280.80 = 1,623.84/x
  3. Step 3: Cross multiply
    5,519.76x = 8,280.80 × 1,623.84
  4. Step 4: Simplify right side
    5,519.76x = 13,446,694.27
  5. Step 5: Solve for x
    x = 13,446,694.27/5,519.76
  6. Step 6: Final answer
    x = 2,436.10

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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.