Home / 4,818.40-7,222.80-2,216.80

Finding the Fourth Proportional to 4,818.40, 7,222.80 and 2,216.80

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Solution

The fourth proportional to 4,818.40, 7,222.80 and 2,216.80 is: 3,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.40 : 7,222.80 = 2,216.80 : x
  2. Step 2: Convert to fraction form
    4,818.40/7,222.80 = 2,216.80/x
  3. Step 3: Cross multiply
    4,818.40x = 7,222.80 × 2,216.80
  4. Step 4: Simplify right side
    4,818.40x = 16,011,503.04
  5. Step 5: Solve for x
    x = 16,011,503.04/4,818.40
  6. Step 6: Final answer
    x = 3,322.99

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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.