Home / 5,455.91-8,182.80-2,124.17

Finding the Fourth Proportional to 5,455.91, 8,182.80 and 2,124.17

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Solution

The fourth proportional to 5,455.91, 8,182.80 and 2,124.17 is: 3,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.91 : 8,182.80 = 2,124.17 : x
  2. Step 2: Convert to fraction form
    5,455.91/8,182.80 = 2,124.17/x
  3. Step 3: Cross multiply
    5,455.91x = 8,182.80 × 2,124.17
  4. Step 4: Simplify right side
    5,455.91x = 17,381,658.28
  5. Step 5: Solve for x
    x = 17,381,658.28/5,455.91
  6. Step 6: Final answer
    x = 3,185.84

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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.