Home / 5,456.84-8,185.23-1,561.55

Finding the Fourth Proportional to 5,456.84, 8,185.23 and 1,561.55

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Solution

The fourth proportional to 5,456.84, 8,185.23 and 1,561.55 is: 2,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.84 : 8,185.23 = 1,561.55 : x
  2. Step 2: Convert to fraction form
    5,456.84/8,185.23 = 1,561.55/x
  3. Step 3: Cross multiply
    5,456.84x = 8,185.23 × 1,561.55
  4. Step 4: Simplify right side
    5,456.84x = 12,781,604.98
  5. Step 5: Solve for x
    x = 12,781,604.98/5,456.84
  6. Step 6: Final answer
    x = 2,342.31

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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.