Home / 4,919.90-7,363.65-3,818.30

Finding the Fourth Proportional to 4,919.90, 7,363.65 and 3,818.30

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Solution

The fourth proportional to 4,919.90, 7,363.65 and 3,818.30 is: 5,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.90 : 7,363.65 = 3,818.30 : x
  2. Step 2: Convert to fraction form
    4,919.90/7,363.65 = 3,818.30/x
  3. Step 3: Cross multiply
    4,919.90x = 7,363.65 × 3,818.30
  4. Step 4: Simplify right side
    4,919.90x = 28,116,624.80
  5. Step 5: Solve for x
    x = 28,116,624.80/4,919.90
  6. Step 6: Final answer
    x = 5,714.88

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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.