Home / 5,480.84-8,222.30-1,782.76

Finding the Fourth Proportional to 5,480.84, 8,222.30 and 1,782.76

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Solution

The fourth proportional to 5,480.84, 8,222.30 and 1,782.76 is: 2,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.84 : 8,222.30 = 1,782.76 : x
  2. Step 2: Convert to fraction form
    5,480.84/8,222.30 = 1,782.76/x
  3. Step 3: Cross multiply
    5,480.84x = 8,222.30 × 1,782.76
  4. Step 4: Simplify right side
    5,480.84x = 14,658,387.55
  5. Step 5: Solve for x
    x = 14,658,387.55/5,480.84
  6. Step 6: Final answer
    x = 2,674.48

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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.