Home / 4,818.20-7,225.02-2,221.40

Finding the Fourth Proportional to 4,818.20, 7,225.02 and 2,221.40

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Solution

The fourth proportional to 4,818.20, 7,225.02 and 2,221.40 is: 3,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.20 : 7,225.02 = 2,221.40 : x
  2. Step 2: Convert to fraction form
    4,818.20/7,225.02 = 2,221.40/x
  3. Step 3: Cross multiply
    4,818.20x = 7,225.02 × 2,221.40
  4. Step 4: Simplify right side
    4,818.20x = 16,049,659.43
  5. Step 5: Solve for x
    x = 16,049,659.43/4,818.20
  6. Step 6: Final answer
    x = 3,331.05

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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.