Home / 5,212.08-7,818.12-3,919.32

Finding the Fourth Proportional to 5,212.08, 7,818.12 and 3,919.32

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Solution

The fourth proportional to 5,212.08, 7,818.12 and 3,919.32 is: 5,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.08 : 7,818.12 = 3,919.32 : x
  2. Step 2: Convert to fraction form
    5,212.08/7,818.12 = 3,919.32/x
  3. Step 3: Cross multiply
    5,212.08x = 7,818.12 × 3,919.32
  4. Step 4: Simplify right side
    5,212.08x = 30,641,714.08
  5. Step 5: Solve for x
    x = 30,641,714.08/5,212.08
  6. Step 6: Final answer
    x = 5,878.98

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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.